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PennEngineering
All Categories > SI® Brand Insert for Plastics > Molded-in Inserts > Knurled Spacers – Types STKA, STKB, STKC > Molded-in Threaded Inserts, Thru-Threaded, Knurled - Unified > Part # STKB-0518-4  

Part # STKB-0518-4, 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.





 Specifications   

Thread Size

.313-18 (5/16-18)

Type

STKB

Thread Code1

0518

Length Code

4

L - Length ± .005

View
.125 in

E Nom.

.437 in

Minor Dia.Min.

.254 in

Minor Dia.Max.

.265 in

Thread Specification

2B per ASME B1.1

Standard Material

Free-machining, Leaded Brass

Standard Finish

Plain

CAD Supplier

PennEngineering® (SI®)
1 Thread tapped thru, Class 3A/4h screw must pass with finger torque, but basic go gauge may stop at last thread.


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·  Configuration for STKB/STKC



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