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  • Uniform knurl diameter reduces the risk of sink marks.
  • Available in varying lengths for injection molding assemblies.
  • Aluminum inserts ideal for light weight designs.
  • Aluminum and stainless steel inserts offer lead-free alternative.
Knurled spacers – STKB, STKC
Molded-in Threaded Inserts, Thru-Threaded, Knurled 2
Unit of Measure
Items Knurled spacers – STKB, STKC
STKA-032-10
Molded-in Threaded Inserts, Thru-Threaded, Knurled - Unified
Knurled spacers – STKB, STKC
STKA-032-12
Molded-in Threaded Inserts, Thru-Threaded, Knurled - Unified
Knurled spacers – STKB, STKC
STKA-032-16
Molded-in Threaded Inserts, Thru-Threaded, Knurled - Unified
Knurled spacers – STKB, STKC
STKA-032-20
Molded-in Threaded Inserts, Thru-Threaded, Knurled - Unified
Knurled spacers – STKB, STKC
STKA-032-24
Molded-in Threaded Inserts, Thru-Threaded, Knurled - Unified
Thread Size N/A .190-32 (#10-32)
Type N/A STKA
Thread Code1 N/A 032
Length Code N/A 10 N/A 12 N/A 16 N/A 20 N/A 24
L - Length ± .0052 N/A .312 in a1293_1.jpg N/A .375 in a1293_1.jpg N/A .500 in a1293_1.jpg N/A .625 in a1293_1.jpg N/A .750 in a1293_1.jpg
E Nom. N/A .281 in
Minor Dia.Min. N/A .157 in
Minor Dia.Max. N/A .164 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®)
Inventory N/A {0} N/A {0} N/A {0} N/A {0} N/A {0}
  • 1 Thread tapped thru, Class 3A/4h screw must pass with finger torque, but basic go gauge may stop at last thread.
  • 2 The “L” dimension is the height of the installed stud at max grip. The height of the stud will increase if it is installed into thinner material. To calculate “actual L” use this formula: max grip - actual grip + L = “actual L”