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Threaded Inserts for Plastics

Threaded Inserts for Plastics
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SI® THREADED INSERTS FOR PLASTICS • SI® inserts are typically specified in applications where strong, durable metal threads are required in plastic material, especially where frequent assembly and disassembly of the unit for service or repair is necessary. • Applications for SI® products include: computers and terminal boards, automotive, electronic equipment, business machines, aerospace, communications equipment and instrument cases. • SI inserts are available in brass, stainless steel and aluminum. • SI inserts are available in a large variety of ultrasonic / heat staking, molded-in or...

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ULTRASONIC / HEAT STAKING INSERTS • Ultrasonic - Installed by pressing the insert into the mounting hole with ultrasonic insertion equipment while simultaneously applying a high frequency vibration. Frictional heat caused by the vibration melts the plastic surrounding the insert allowing easy insertion. When the vibration ceases, the plastic solidifies, locking the insert permanently in place. • Heat Staking - Installed by pressing the insert into the mounting hole with a thermal press to melt the plastic surrounding the insert. New IUB, IUC (Tapered, through threaded inserts) - Page 4...

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ULTRASONIC / HEAT STAKING INSERTS Tapered Thru-Threaded, Types IUB™ and IUC™ • Designed for use in tapered holes. • Tapered mounting hole allows for rapid and accurate alignment prior to installation. Mounting Hole Type Brass Stainless Steel Stainless Steel Length Code Length Code Hole Size in Material Min. Hole Depth Thread Size x Pitch Hole Size in Material Min. Hole Depth (1) Thread tapped thru, Class 3A/4h screw must pass with finger torque, but basic go gauge may stop at last thread. (2) Diamond knurl.

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ULTRASONIC / HEAT STAKING INSERTS Straight Wall, Thru-Threaded, Types IUTB™ and IUTC™ • Designed for use in straight holes. • Self-aligning lead-in of insert provides for accurate alignment prior to installation. Thread Size Hole Size in Material Hole Dia. Min. Hole + .003 Depth - .000 Stainless Steel Stainless Steel Thread Size x Pitch Hole Size in Material Min. Hole Depth (1) Thread tapped thru, Class 3A/4h screw must pass with finger torque, but basic go gauge may stop at last thread. PennEngineering • www.pemnet.com

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ULTRASONIC / HEAT STAKING INSERTS Symmetrical, Thru-Threaded, Types ISB™ and ISC™ • Designed for use in straight or tapered holes. • Symmetrical design eliminates the need for orientation. Thread Size Type Stainless Steel Hole Size in Material Hole Depth Hole Size in Material Stainless Steel Thread Size x Pitch (1) Thread tapped thru, Class 3A/4h screw must pass with finger torque, but basic go gauge may stop at last thread. Hole Depth

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ULTRASONIC / HEAT STAKING INSERTS microPEM® Symmetrical, Thru-Threaded, Type MSIB™ • Threads as small as M1. • Designed for use in straight or tapered holes. • Symmetrical design eliminates the need for orientation. • Provides excellent performance in wide range of plastics. After Knurl Thread Size x Type Pitch Thread Code Length Code Mounting Hole in Material Min. Wall Hole Depth Hole Diameter Thickness (6) Min. +0.05 (1) Style #1 - length codes less than 150 (2) Style #2 - length codes 150 and greater (3) Metric ISO 68-1, 5H (4) Metric ISO 68-1, 6H (5) Metric ASME B1.13M, 6H (6) Refers to...

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ULTRASONIC THREADED INSERTS PERFORMANCE DATA Types IUB, IUBB, IUC, and IUCC(1) Thread Code Thread Code Polycarbonate METRIC Thread Code Thread Code Type Thread Length Code Code Pullout (N) Test Sheet Material Polycarbonate (1) The values reported are averages for ultrasonically inserted inserts when all installation specifications and procedures are followed. Variations in mounting hole size, sheet material and installation procedure will affect results. Performance testing of this product in your application is recommended. Samples can be provided for this purpose. (2) Torque-out...

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MOLDED-IN THREADED INSERTS Blind Threaded, Types IBB™ and IBC™ • Blind-end protects the threads from plastic intrusion. NOTE: Manufacturing techniques may leave a slight projection a maximum of .025” / 0.65 mm beyond the “A” dimension. E Stock Diameter (Before Knurl) Type Stainless Brass Steel Thread Code Type Stainless Brass Steel Thread Code Thread Size x Pitch PennEngineering • www.pemnet.com

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MOLDED-IN THREADED INSERTS Self-Locking, Blind Threaded, Type IBLC™ • Deformed threads lock screw in place to resist vibration. • Blind-end protects the threads from plastic intrusion. Deformed thread for self-locking feature NOTE: Manufacturing techniques may leave a slight projection a maximum of .025” / 0.65 mm beyond the “A” dimension. S1 E Stock Diameter (Before Knurl) Type Stainless Steel Thread Code Length Code Thread Size First Cycle on Locking Torque (in. lbs.) Min. Max. First Cycle on Locking Torque (N•m) Min. Max. Type Stainless Steel Thread Code Length Code Thread Size x Pitch...

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MOLDED-IN THREADED INSERTS Thru-Threaded, Types ITB™ and ITC™ • Pilot diameter and undercuts allow plastic to flow into grooves providing high pullout resistance. E Stock Diameter (Before Knurl) Stainless Steel Thread Size Stainless Steel Thread Size x Pitch (1) Thread tapped thru, Class 3A/4h screw must pass with finger torque, but basic go gauge may stop at last thread. PennEngineering • www.pemnet.com

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MOLDED-IN THREADED INSERTS Thru-Threaded, Knurled, Types STKB™ and STKC™ • Uniform knurl diameter reduces the risk of sink marks. • Available in varying lengths for injection molding assemblies. Stock Diameter (Before Knurl) Type Stainless Brass Steel Length Code “L” ± .005 in 32nds of an Inch .312 .375 Thread Size x Pitch Type Stainless Steel Length Code “L” ± 0.13 in millimeters (1) Thread tapped thru, Class 3A/4h screw must pass with finger torque, but basic go gauge may stop at last thread. NA Not Available.

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