PennEngineering
Corporate Headquarters – Danboro, PA
5190 Old Easton Rd.
Danboro, PA 18916
Phone:
215-766-8853
Toll-Free Phone:
1-800-237-4736 (U.S. only)
Email:
info@pemnet.com
Website:
www.pemnet.com
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SI® Brand Insert for Plastics
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Molded-in Inserts
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Knurled Spacers – Types STKA, STKB, STKC
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Molded-in Threaded Inserts, Thru-Threaded, Knurled - Unified
> Part # STKA-0518-20
Part # STKA-0518-20, Molded-in Threaded Inserts, Thru-Threaded, Knurled - Unified
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.
Unit of Measure
Imperial
Metric
Both
Specifications
Thread Size
N/A
.313-18 (5/16-18)
Type
N/A
STKA
Thread Code
1
N/A
0518
Length Code
N/A
20
L - Length ± .005
N/A
.625 in
E Nom.
N/A
.437 in
Minor Dia.Min.
N/A
.254 in
Minor Dia.Max.
N/A
.265 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.