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  • Designed for use in straight or tapered holes.
  • Symmetrical design eliminates the need for orientation.
  • Aluminum inserts ideal for light weight designs.
  • Aluminum and stainless steel inserts offer lead-free alternative.
Symmetrical, thru threaded inserts – Types ISB, ISC
Heat Staking Insert, Symmetrical, Thru-Threaded 2
Unit of Measure
Items Symmetrical, thru threaded inserts – Types ISB, ISC
ISA-032
Heat Staking Insert, Symmetrical, Thru-Threaded - Unified
Symmetrical, thru threaded inserts – Types ISB, ISC
ISA-0420
Heat Staking Insert, Symmetrical, Thru-Threaded - Unified
Symmetrical, thru threaded inserts – Types ISB, ISC
ISA-256
Heat Staking Insert, Symmetrical, Thru-Threaded - Unified
Symmetrical, thru threaded inserts – Types ISB, ISC
ISA-440
Heat Staking Insert, Symmetrical, Thru-Threaded - Unified
Symmetrical, thru threaded inserts – Types ISB, ISC
ISA-632
Heat Staking Insert, Symmetrical, Thru-Threaded - Unified
Thread Size N/A .190-32 (#10-32) N/A .250-20 (1/4-20) N/A .086-56 (#2-56) N/A .112-40 (#4-40) N/A .138-32 (#6-32)
Type N/A ISA
Thread Code1 N/A 032 N/A 0420 N/A 256 N/A 440 N/A 632
A ± .005 N/A .375 in a1289.jpg N/A .500 in a1289.jpg N/A .157 in a1289.jpg N/A .226 in a1289.jpg N/A .281 in a1289.jpg
E ± .009 N/A .276 in N/A .338 in N/A .151 in N/A .182 in N/A .215 in
C ± .003 N/A .248 in N/A .311 in N/A .122 in N/A .153 in N/A .184 in
Min. Hole Depth N/A .405 in N/A .530 in N/A .187 in N/A .256 in N/A .311 in
Hole Dia. +.003 -.000 N/A .252 in N/A .315 in N/A .126 in N/A .157 in N/A .188 in
Thread Specification N/A 2B per ASME B1.1
Standard Material N/A Aluminum
Standard Finish N/A Plain
CAD Supplier N/A PennEngineering® (SI®)
  • 1 Thread tapped thru, Class 3A/4h screw must pass with finger torque, but basic go gauge may stop at last thread