PLASTITE SCREW BOSS DESIGN GUIDE



Plastite Screw Boss Design Guide

Design Guide Shakeproof. Boss features are commonly found in injection molding designs. They are used to aid in the assembly of molded parts by providing a channel for a screw. Designing plastic screw bosses is fairly straightforward but there are a few considerations to ensure a strong connection between parts …, The PLASTITE 45 screw is designed to facilitate thread-forming in less-compressible plastics while providing high resistance to strip-out and pull-out. The single lead design and narrow helix angle lowers drive torque and failure torque in stiffer plastics..

Design Better Screw Bosses on Molded Parts

Boss Design eFunda. •design of the injection molding tool •distance to the injection point •formation of welding lines •variations in application components The counterbore is of special importance, as it ensures a favorable edge stress reduction and prevents boss cracking. In addition, the counterbore acts as a guide …, Design Guides for Plastics Clive Maier, Econology Ltd TANGRAM TECHNOLOGY . This publication is made up of a series of articles published in Plastics and Rubber Weekly as a piece work. The kind assistance of the author and PRW is acknowledged in the publication of the work. The publication will be updated in a regular basis as new sections of the guide are published by PRW. The design hints in.

Screws for Plastic Design Guide Considerations Fastening plastics using standard self tapping screws frequently causes assembly problems. The plastic material is liable to … BOSS DESIGN RECOMMENDATIONS FOR Through a series of laboratory tests and field service feedback, some general recommendations can be made. For

for plastic applications Compression limiters are non-threaded inserts that are commonly used in applications where a compressive load is applied to a plastic assembly. The compression limiter strengthens the plastic and withstands the compressive force that is applied when a mating screw is tightened in the assembly. The integrity of the 10 Boss Design Guidelines one should follow in Plastic Parts Design 1. Minimum Radius at Base of Boss A fillet of a certain minimum radius should be provided at the base of a boss to reduce stress. The intersection of the base of the boss with the nominal wall is typically stressed and stress concentration increases if no radii are provided

assembled onto a plastic base. A screw driven into a boss of the plastic base secures the two components. A boss is a sleeve-like projection, molded into the plastic base material. Boss design is critical to joint integrity and will be discussed in the following paragraphs. Figure 1. Screws for Static Joints Plastic Flex Thread Thread Boss features are commonly found in injection molding designs. They are used to aid in the assembly of molded parts by providing a channel for a screw. Designing plastic screw bosses is fairly straightforward but there are a few considerations to ensure a strong connection between parts …

Boss features are commonly found in injection molding designs. They are used to aid in the assembly of molded parts by providing a channel for a screw. Designing plastic screw bosses is fairly straightforward but there are a few considerations to ensure a strong connection between parts … Screws for Plastic Design Guide Considerations Fastening plastics using standard self tapping screws frequently causes assembly problems. The plastic material is liable to …

area in the plastic boss or nut member, and the plastic material remaining between the threads is left strong and intact, thus providing for high assembly loads and stripping resistance. The narrow thread angle also reduces stress by displacing less material and creating less bursting pressure (See above illustration). Hardened and tempered screws are significantly stronger than plastic so if The PLASTITE 45 screw is designed to facilitate thread-forming in less-compressible plastics while providing high resistance to strip-out and pull-out. The single lead design and narrow helix angle lowers drive torque and failure torque in stiffer plastics.

Screws For Plastic And Other Low Density Materials. Plastite trilobular thread rolling screws are designed for high performance fastening in a wide range of thermoplastics. The 60° profile on the Type 60-1 screw penetrates deeply into the work piece, absorbing higher torques without stripping and resisting pullout forces. As threads are formed MISSION STATEMENT. Our Mission is to deliver a Zip Fast fastener or value added component to our customers, while building the highest quality into our product at the lowest possible cost.

FASTENER SUPERSTORE FASTENER GUIDE Threads (866) 688-2500 WWW.FASTENERSUPERSTORE.COM Live Support Specialists Available Via Phone & Chat Machine Screw / Cap Screw Threads are used in numerous types of screws & bolts: design of PLASTITE ® screws takes full area in the plastic boss or nut member, and the plastic material remaining between the threads is left strong and intact, thus providing for high assembly loads and stripping resistance. The narrow thread angle also reduces stress by displacing less material and creating less bursting pressure (See above illustration). Hardened and tempered screws

Boss Design: Bosses are used for the purpose of registration of mating parts or for attaching fasteners such as screws or accepting threaded inserts (molded-in, press-fitted, ultrasonically or thermally inserted). The wall thicknesses should be less than 60 % of nominal wall to minimize sinking. However, if the boss is not in a visible area FASTENER SUPERSTORE FASTENER GUIDE Threads (866) 688-2500 WWW.FASTENERSUPERSTORE.COM Live Support Specialists Available Via Phone & Chat Machine Screw / Cap Screw Threads are used in numerous types of screws & bolts:

design of PLASTITE ® screws takes full area in the plastic boss or nut member, and the plastic material remaining between the threads is left strong and intact, thus providing for high assembly loads and stripping resistance. The narrow thread angle also reduces stress by displacing less material and creating less bursting pressure (See above illustration). Hardened and tempered screws Plastite® 48-2 Trilobular™ thread-rolling screws have twin lead threads to provide faster, more efficient insertion. The sharp 48° thread profile increases holding strength and reduces material displacement and boss bursting tendencies. Drive and strip torques are higher, making drive tool adjustments simple. NOTE: Component and boss design

Design Better Screw Bosses on Molded Parts

Plastite screw boss design guide

SOLUTION semblex.com. The Plastite ® 45 screw is designed to facilitate thread-forming in less-compressible plastics while providing high resistance to strip-out and pull-out. It has smaller root and major diameters than a 45° Plastite ®, so it can be used in smaller bosses. Features, Screws For Plastic And Other Low Density Materials. Plastite trilobular thread rolling screws are designed for high performance fastening in a wide range of thermoplastics. The 60° profile on the Type 60-1 screw penetrates deeply into the work piece, absorbing higher torques without stripping and resisting pullout forces. As threads are formed.

THREADED INSERTS FOR PLASTICS

Plastite screw boss design guide

Threaded Fasteners for Plastics Technical Manual Pages 1. Drive and strip torques are higher, making drive tool adjustments simple. NOTE: Component and boss design should allow for much faster engagement than with single lead screws. Size/TPI – The PLASTITE® 48-2 screw size designation combines the commonly used numerical screw size with the major diameter (Max. "D"), as measured with ordinary design of PLASTITE ® screws takes full area in the plastic boss or nut member, and the plastic material remaining between the threads is left strong and intact, thus providing for high assembly loads and stripping resistance. The narrow thread angle also reduces stress by displacing less material and creating less bursting pressure (See above illustration). Hardened and tempered screws.

Plastite screw boss design guide

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  • Screw Bosses Design screw bosses with care. While small boss diameters reduce the tenden-cy for sinks and/or voids because they have thin side walls, they may not pro-vide sufficient structural strength to withstand assembly hoop stress. See figure 5 for suggested boss design. A counterbore, provided as a lead-in, helps align the screw and Boss Design is a leading furniture manufacturer designing innovative solutions for the world's workspaces. From task chairs, breakout and collaboration, meeting and conference and work café seating, to media units and office pods, our award-winning products will help transform your space from ordinary to extraordinary.

    Drive and strip torques are higher, making drive tool adjustments simple. NOTE: Component and boss design should allow for much faster engagement than with single lead screws. Size/TPI – The PLASTITE® 48-2 screw size designation combines the commonly used numerical screw size with the major diameter (Max. "D"), as measured with ordinary The thermoformed Plastic Boss: A How-to Guide Many electronic products are held together by machine screws (into bosses) and snap fits. 0 April 21, 2010 Staff

    With so many ways to formulate plastic to get just the right combination of color, texture and durability, it's easy to forget how the parts will be assembled. However, if the parts will be assembled with screws, overlooking such parameters as thread style, driver speed and boss design could spell disaster on … The PLASTITE 45 screw is designed to facilitate thread-forming in less-compressible plastics while providing high resistance to strip-out and pull-out. The single lead design and narrow helix angle lowers drive torque and failure torque in stiffer plastics.

    Boss features are commonly found in injection molding designs. They are used to aid in the assembly of molded parts by providing a channel for a screw. Designing plastic screw bosses is fairly straightforward but there are a few considerations to ensure a strong connection between parts … Boss Design is a leading furniture manufacturer designing innovative solutions for the world's workspaces. From task chairs, breakout and collaboration, meeting and conference and work café seating, to media units and office pods, our award-winning products will help transform your space from ordinary to extraordinary.

    Screw Bosses Design screw bosses with care. While small boss diameters reduce the tenden-cy for sinks and/or voids because they have thin side walls, they may not pro-vide sufficient structural strength to withstand assembly hoop stress. See figure 5 for suggested boss design. A counterbore, provided as a lead-in, helps align the screw and Apex Fasteners : Plastite - Threaded Products Screw Machine Products Inserts Rivets Stampings Plastic Molded Products Other Fasteners Apex® Fastener Tools Thread Forming Screws Spring Steel Fasteners Nuts Pins Construction Fasteners Utica® Torque Products Apex® Universal Joints TE-CO Spring Plunger Products Sturtevant Richmont Torque Tools Apex Tool Group Ball Studs Captive Fasteners

    Boss features are commonly found in injection molding designs. They are used to aid in the assembly of molded parts by providing a channel for a screw. Designing plastic screw bosses is fairly straightforward but there are a few considerations to ensure a strong connection between parts … 10 Boss Design Guidelines one should follow in Plastic Parts Design 1. Minimum Radius at Base of Boss A fillet of a certain minimum radius should be provided at the base of a boss to reduce stress. The intersection of the base of the boss with the nominal wall is typically stressed and stress concentration increases if no radii are provided

    Apex Fasteners : Plastite - Threaded Products Screw Machine Products Inserts Rivets Stampings Plastic Molded Products Other Fasteners Apex® Fastener Tools Thread Forming Screws Spring Steel Fasteners Nuts Pins Construction Fasteners Utica® Torque Products Apex® Universal Joints TE-CO Spring Plunger Products Sturtevant Richmont Torque Tools Apex Tool Group Ball Studs Captive Fasteners •design of the injection molding tool •distance to the injection point •formation of welding lines •variations in application components The counterbore is of special importance, as it ensures a favorable edge stress reduction and prevents boss cracking. In addition, the counterbore acts as a guide …

    configuration Plastite® 45 Fastener KEY ADVANTAGES • Can be used in smaller bosses than Plastite 48 fasteners • Increases product reliability • Lowers required drive torque when fastening stiffer thermoplastics FEATURES & BENEFITS Tri-roundular configuration allows displaced material to cold flow back into relief areas • Minimizes radial stress relief areasSPECIFICATIONS • Reduces assembled onto a plastic base. A screw driven into a boss of the plastic base secures the two components. A boss is a sleeve-like projection, molded into the plastic base material. Boss design is critical to joint integrity and will be discussed in the following paragraphs. Figure 1. Screws for Static Joints Plastic Flex Thread Thread

    Plastite screw boss design guide

    Plastite® 48-2 Trilobular™ thread-rolling screws have twin lead threads to provide faster, more efficient insertion. The sharp 48° thread profile increases holding strength and reduces material displacement and boss bursting tendencies. Drive and strip torques are higher, making drive tool adjustments simple. NOTE: Component and boss design •design of the injection molding tool •distance to the injection point •formation of welding lines •variations in application components The counterbore is of special importance, as it ensures a favorable edge stress reduction and prevents boss cracking. In addition, the counterbore acts as a guide …

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    Plastite screw boss design guide

    Threaded Fasteners for Plastics. Plastite Screws to thread form in plastic materials are readily available, primarily from branded suppliers. Thread spacing is wider and may vary dependent upon the type of plastic involved and allows plastic deformation to aid thread generation by shaping without removal of any material., plastic part with maximum protrusion from the host of 0.13mm (.005”). DESIGN GUIDELINES Straight Hole Tapered Hole lCorrect hole size is critical. Larger holes decrease performance, while smaller holes induce undesirable stresses and potential cracks in the plastic. Undersized holes may also result in flash at the hole edge and make the Insert.

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    Inserts Design Guidelines SPIROL. – Type of Screw Design – Original Design Specification (Specific Mat’l Rate Verification) – Relationship of Screw Design Features to System Components. Extruder Performance There is only one measure of extruder performance and that is melt quality. This is reflected in quantitative on-line measures as well as product performance measures. Melt Quality • Temperature Uniformity, BOSS DESIGN RECOMMENDATIONS FOR Through a series of laboratory tests and field service feedback, some general recommendations can be made. For.

    The Plastite ® 45 screw is designed to facilitate thread-forming in less-compressible plastics while providing high resistance to strip-out and pull-out. It has smaller root and major diameters than a 45° Plastite ®, so it can be used in smaller bosses. Features Screws for Plastic Design Guide Considerations Fastening plastics using standard self tapping screws frequently causes assembly problems. The plastic material is liable to …

    29/06/2018 · how to create plastic part feture in catia how to create plastic part feture screw boss in catia. Apex Fasteners : Plastite - Threaded Products Screw Machine Products Inserts Rivets Stampings Plastic Molded Products Other Fasteners Apex® Fastener Tools Thread Forming Screws Spring Steel Fasteners Nuts Pins Construction Fasteners Utica® Torque Products Apex® Universal Joints TE-CO Spring Plunger Products Sturtevant Richmont Torque Tools Apex Tool Group Ball Studs Captive Fasteners

    29/06/2018 · how to create plastic part feture in catia how to create plastic part feture screw boss in catia. With so many ways to formulate plastic to get just the right combination of color, texture and durability, it's easy to forget how the parts will be assembled. However, if the parts will be assembled with screws, overlooking such parameters as thread style, driver speed and boss design could spell disaster on …

    Boss Design: Bosses are used for the purpose of registration of mating parts or for attaching fasteners such as screws or accepting threaded inserts (molded-in, … The Plastite ® 45 screw is designed to facilitate thread-forming in less-compressible plastics while providing high resistance to strip-out and pull-out. It has smaller root and major diameters than a 45° Plastite ®, so it can be used in smaller bosses. Features

    Plastite Screws are specially designed for use with plastic housings. These fasteners are part of Accu's extensive range of Precision Screws.These plastite screws feature a specialised thread, which is designed to be self-tapping and create its own threads when used in pre-drilled plastic holes. configuration Plastite® 45 Fastener KEY ADVANTAGES • Can be used in smaller bosses than Plastite 48 fasteners • Increases product reliability • Lowers required drive torque when fastening stiffer thermoplastics FEATURES & BENEFITS Tri-roundular configuration allows displaced material to cold flow back into relief areas • Minimizes radial stress relief areasSPECIFICATIONS • Reduces

    The PLASTITE 45 screw is designed to facilitate thread-forming in less-compressible plastics while providing high resistance to strip-out and pull-out. The single lead design and narrow helix angle lowers drive torque and failure torque in stiffer plastics. Reduced Cracking, Splitting And Boss Breakage. The superior performance of the Hi-Lo fastener increases product quality and decreases costs. The 30° included angle of the high thread form reduces radial or bursting pressure to one-half of that generated by …

    Browse PLASTITE® 302 Stainless Steel Thread Forming Screws in the O.E.M. Fastening Systems catalog including Item #,Item Name,Thread Size,Head,Drive Size,Drive System MISSION STATEMENT. Our Mission is to deliver a Zip Fast fastener or value added component to our customers, while building the highest quality into our product at the lowest possible cost.

    assembled onto a plastic base. A screw driven into a boss of the plastic base secures the two components. A boss is a sleeve-like projection, molded into the plastic base material. Boss design is critical to joint integrity and will be discussed in the following paragraphs. Figure 1. Screws for Static Joints Plastic Flex Thread Thread The High Performance Plas-Tech 30 screw for plastic is a direct screw fastener for use in thermoplastics. It's design characteristics include a profiled thread root to assist plastic flow and stress reduction, a 30 Degree flank angle to reduce boss bursting forces and an 8 Degree pitch angle which combine to support low installation torques

    Drive and strip torques are higher, making drive tool adjustments simple. NOTE: Component and boss design should allow for much faster engagement than with single lead screws. Size/TPI – The PLASTITE® 48-2 screw size designation combines the commonly used numerical screw size with the major diameter (Max. "D"), as measured with ordinary Drive and strip torques are higher, making drive tool adjustments simple. NOTE: Component and boss design should allow for much faster engagement than with single lead screws. Size/TPI – The PLASTITE® 48-2 screw size designation combines the commonly used numerical screw size with the major diameter (Max. "D"), as measured with ordinary

    •design of the injection molding tool •distance to the injection point •formation of welding lines •variations in application components The counterbore is of special importance, as it ensures a favorable edge stress reduction and prevents boss cracking. In addition, the counterbore acts as a guide … With so many ways to formulate plastic to get just the right combination of color, texture and durability, it's easy to forget how the parts will be assembled. However, if the parts will be assembled with screws, overlooking such parameters as thread style, driver speed and boss design could spell disaster on …

    – Type of Screw Design – Original Design Specification (Specific Mat’l Rate Verification) – Relationship of Screw Design Features to System Components. Extruder Performance There is only one measure of extruder performance and that is melt quality. This is reflected in quantitative on-line measures as well as product performance measures. Melt Quality • Temperature Uniformity The High Performance Plas-Tech 30 screw for plastic is a direct screw fastener for use in thermoplastics. It's design characteristics include a profiled thread root to assist plastic flow and stress reduction, a 30 Degree flank angle to reduce boss bursting forces and an 8 Degree pitch angle which combine to support low installation torques

    Screws For Plastic And Other Low Density Materials. Plastite trilobular thread rolling screws are designed for high performance fastening in a wide range of thermoplastics. The 60° profile on the Type 60-1 screw penetrates deeply into the work piece, absorbing higher torques without stripping and resisting pullout forces. As threads are formed Boss features are commonly found in injection molding designs. They are used to aid in the assembly of molded parts by providing a channel for a screw. Designing plastic screw bosses is fairly straightforward but there are a few considerations to ensure a strong connection between parts …

    Design Guides for Plastics Clive Maier, Econology Ltd TANGRAM TECHNOLOGY . This publication is made up of a series of articles published in Plastics and Rubber Weekly as a piece work. The kind assistance of the author and PRW is acknowledged in the publication of the work. The publication will be updated in a regular basis as new sections of the guide are published by PRW. The design hints in FASTENER SUPERSTORE FASTENER GUIDE Threads (866) 688-2500 WWW.FASTENERSUPERSTORE.COM Live Support Specialists Available Via Phone & Chat Machine Screw / Cap Screw Threads are used in numerous types of screws & bolts:

    Boss features are commonly found in injection molding designs. They are used to aid in the assembly of molded parts by providing a channel for a screw. Designing plastic screw bosses is fairly straightforward but there are a few considerations to ensure a strong connection between parts … area in the plastic boss or nut member, and the plastic material remaining between the threads is left strong and intact, thus providing for high assembly loads and stripping resistance. The narrow thread angle also reduces stress by displacing less material and creating less bursting pressure (See above illustration). Hardened and tempered screws are significantly stronger than plastic so if

    Self Tapping Screws Installation Design . ANSI Hardware Design & Engineering . Bolt Screw Torque and Force Design . When designing for self-tapping screws, a number of factors are important: Boss Hole Dimension: For the highest ratio of stripping to driving torque, use a hole diameter equal to the pitch diameter of the screw. Boss Outside Dimension: The most practical boss diameter is 2.5 Drive and strip torques are higher, making drive tool adjustments simple. NOTE: Component and boss design should allow for much faster engagement than with single lead screws. Size/TPI – The PLASTITE® 48-2 screw size designation combines the commonly used numerical screw size with the major diameter (Max. "D"), as measured with ordinary

    Boss features are commonly found in injection molding designs. They are used to aid in the assembly of molded parts by providing a channel for a screw. Designing plastic screw bosses is fairly straightforward but there are a few considerations to ensure a strong connection between parts … FASTENER SUPERSTORE FASTENER GUIDE Threads (866) 688-2500 WWW.FASTENERSUPERSTORE.COM Live Support Specialists Available Via Phone & Chat Machine Screw / Cap Screw Threads are used in numerous types of screws & bolts:

    PLASTITE semblex.com

    Plastite screw boss design guide

    The thermoformed Plastic Boss A How-to Guide Design. MISSION STATEMENT. Our Mission is to deliver a Zip Fast fastener or value added component to our customers, while building the highest quality into our product at the lowest possible cost., – Type of Screw Design – Original Design Specification (Specific Mat’l Rate Verification) – Relationship of Screw Design Features to System Components. Extruder Performance There is only one measure of extruder performance and that is melt quality. This is reflected in quantitative on-line measures as well as product performance measures. Melt Quality • Temperature Uniformity.

    SCREW DESIGN BASICS TAPPI. The PLASTITE 45 screw is designed to facilitate thread-forming in less-compressible plastics while providing high resistance to strip-out and pull-out. The single lead design and narrow helix angle lowers drive torque and failure torque in stiffer plastics., FASTENER SUPERSTORE FASTENER GUIDE Threads (866) 688-2500 WWW.FASTENERSUPERSTORE.COM Live Support Specialists Available Via Phone & Chat Machine Screw / Cap Screw Threads are used in numerous types of screws & bolts:.

    Plastic Boss Design Guidlines Zip Fastener Products

    Plastite screw boss design guide

    Screws for Plastic How to select fasteners for plastic. DESIGN GUIDE The PT® SCREW is a direct screw fastener for use in thermoplastics. The key design aspects include a profiled thread root to assist plastic flow, a 30° flank angle to reduce boss bursting forces and an 8° pitch angle which combine to give low installation torques with high stripping torques. For those applications not The PLASTITE 45 screw is designed to facilitate thread-forming in less-compressible plastics while providing high resistance to strip-out and pull-out. The single lead design and narrow helix angle lowers drive torque and failure torque in stiffer plastics..

    Plastite screw boss design guide


    configuration Plastite® 45 Fastener KEY ADVANTAGES • Can be used in smaller bosses than Plastite 48 fasteners • Increases product reliability • Lowers required drive torque when fastening stiffer thermoplastics FEATURES & BENEFITS Tri-roundular configuration allows displaced material to cold flow back into relief areas • Minimizes radial stress relief areasSPECIFICATIONS • Reduces – Type of Screw Design – Original Design Specification (Specific Mat’l Rate Verification) – Relationship of Screw Design Features to System Components. Extruder Performance There is only one measure of extruder performance and that is melt quality. This is reflected in quantitative on-line measures as well as product performance measures. Melt Quality • Temperature Uniformity

    10 Boss Design Guidelines one should follow in Plastic Parts Design 1. Minimum Radius at Base of Boss A fillet of a certain minimum radius should be provided at the base of a boss to reduce stress. The intersection of the base of the boss with the nominal wall is typically stressed and stress concentration increases if no radii are provided Plastite® 48-2 Trilobular™ thread-rolling screws have twin lead threads to provide faster, more efficient insertion. The sharp 48° thread profile increases holding strength and reduces material displacement and boss bursting tendencies. Drive and strip torques are higher, making drive tool adjustments simple. NOTE: Component and boss design

    Plastite Screws are specially designed for use with plastic housings. These fasteners are part of Accu's extensive range of Precision Screws.These plastite screws feature a specialised thread, which is designed to be self-tapping and create its own threads when used in pre-drilled plastic holes. Drive and strip torques are higher, making drive tool adjustments simple. NOTE: Component and boss design should allow for much faster engagement than with single lead screws. Size/TPI – The PLASTITE® 48-2 screw size designation combines the commonly used numerical screw size with the major diameter (Max. "D"), as measured with ordinary

    Screws for Plastic Design Guide Considerations Fastening plastics using standard self tapping screws frequently causes assembly problems. The plastic material is liable to … MISSION STATEMENT. Our Mission is to deliver a Zip Fast fastener or value added component to our customers, while building the highest quality into our product at the lowest possible cost.

    MISSION STATEMENT. Our Mission is to deliver a Zip Fast fastener or value added component to our customers, while building the highest quality into our product at the lowest possible cost. Design Guides for Plastics Clive Maier, Econology Ltd TANGRAM TECHNOLOGY . This publication is made up of a series of articles published in Plastics and Rubber Weekly as a piece work. The kind assistance of the author and PRW is acknowledged in the publication of the work. The publication will be updated in a regular basis as new sections of the guide are published by PRW. The design hints in

    Boss features are commonly found in injection molding designs. They are used to aid in the assembly of molded parts by providing a channel for a screw. Designing plastic screw bosses is fairly straightforward but there are a few considerations to ensure a strong connection between parts … configuration Plastite® 45 Fastener KEY ADVANTAGES • Can be used in smaller bosses than Plastite 48 fasteners • Increases product reliability • Lowers required drive torque when fastening stiffer thermoplastics FEATURES & BENEFITS Tri-roundular configuration allows displaced material to cold flow back into relief areas • Minimizes radial stress relief areasSPECIFICATIONS • Reduces

    Browse PLASTITE® 302 Stainless Steel Thread Forming Screws in the O.E.M. Fastening Systems catalog including Item #,Item Name,Thread Size,Head,Drive Size,Drive System assembled onto a plastic base. A screw driven into a boss of the plastic base secures the two components. A boss is a sleeve-like projection, molded into the plastic base material. Boss design is critical to joint integrity and will be discussed in the following paragraphs. Figure 1. Screws for Static Joints Plastic Flex Thread Thread

    Typical Boss Design for Standard Screw Typical Boss Design for Fastener for Plastics Lowered Radial Stress Prevents Boss Damage Radial force (FRAD) is an undesirable force since it creates outward stress and can damage the boss. Although the same volume of material is displaced between the 60° thread and the 30° thread, the radial force generated by the 30° thread is approximately one-half Typical Boss Design for Standard Screw Typical Boss Design for Fastener for Plastics Lowered Radial Stress Prevents Boss Damage Radial force (FRAD) is an undesirable force since it creates outward stress and can damage the boss. Although the same volume of material is displaced between the 60° thread and the 30° thread, the radial force generated by the 30° thread is approximately one-half

    assembled onto a plastic base. A screw driven into a boss of the plastic base secures the two components. A boss is a sleeve-like projection, molded into the plastic base material. Boss design is critical to joint integrity and will be discussed in the following paragraphs. Figure 1. Screws for Static Joints Plastic Flex Thread Thread plastic part with maximum protrusion from the host of 0.13mm (.005”). DESIGN GUIDELINES Straight Hole Tapered Hole lCorrect hole size is critical. Larger holes decrease performance, while smaller holes induce undesirable stresses and potential cracks in the plastic. Undersized holes may also result in flash at the hole edge and make the Insert

    Browse PLASTITE® 302 Stainless Steel Thread Forming Screws in the O.E.M. Fastening Systems catalog including Item #,Item Name,Thread Size,Head,Drive Size,Drive System The Plastite ® 45 screw is designed to facilitate thread-forming in less-compressible plastics while providing high resistance to strip-out and pull-out. It has smaller root and major diameters than a 45° Plastite ®, so it can be used in smaller bosses. Features

    for plastic applications Compression limiters are non-threaded inserts that are commonly used in applications where a compressive load is applied to a plastic assembly. The compression limiter strengthens the plastic and withstands the compressive force that is applied when a mating screw is tightened in the assembly. The integrity of the Plastite® 48-2 Trilobular™ thread-rolling screws have twin lead threads to provide faster, more efficient insertion. The sharp 48° thread profile increases holding strength and reduces material displacement and boss bursting tendencies. Drive and strip torques are higher, making drive tool adjustments simple. NOTE: Component and boss design

    10 Boss Design Guidelines one should follow in Plastic Parts Design 1. Minimum Radius at Base of Boss A fillet of a certain minimum radius should be provided at the base of a boss to reduce stress. The intersection of the base of the boss with the nominal wall is typically stressed and stress concentration increases if no radii are provided The High Performance Plas-Tech 30 screw for plastic is a direct screw fastener for use in thermoplastics. It's design characteristics include a profiled thread root to assist plastic flow and stress reduction, a 30 Degree flank angle to reduce boss bursting forces and an 8 Degree pitch angle which combine to support low installation torques

    configuration Plastite® 45 Fastener KEY ADVANTAGES • Can be used in smaller bosses than Plastite 48 fasteners • Increases product reliability • Lowers required drive torque when fastening stiffer thermoplastics FEATURES & BENEFITS Tri-roundular configuration allows displaced material to cold flow back into relief areas • Minimizes radial stress relief areasSPECIFICATIONS • Reduces are endless possibilities for creating unique designs. For mating parts a joint can be hidden by making it part of a fluted design. Masking of imperfections Where a profile has, for example, arms and screw ports, there may be process induced shadowing (heat zones) opposite such features. Using decoration the heat zones can be completely masked.

    Typical Boss Design for Standard Screw Typical Boss Design for Fastener for Plastics Lowered Radial Stress Prevents Boss Damage Radial force (FRAD) is an undesirable force since it creates outward stress and can damage the boss. Although the same volume of material is displaced between the 60° thread and the 30° thread, the radial force generated by the 30° thread is approximately one-half BOSS DESIGN RECOMMENDATIONS FOR Through a series of laboratory tests and field service feedback, some general recommendations can be made. For

    The Plastite ® 45 screw is designed to facilitate thread-forming in less-compressible plastics while providing high resistance to strip-out and pull-out. It has smaller root and major diameters than a 45° Plastite ®, so it can be used in smaller bosses. Features Boss Design: Bosses are used for the purpose of registration of mating parts or for attaching fasteners such as screws or accepting threaded inserts (molded-in, …