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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 # STKA-0420-12  

Part # STKA-0420-12, Molded-in Threaded Inserts, Thru-Threaded, Knurled - Unified

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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.




 Specifications   

Thread Size
.250-20 (1/4-20)

Type
STKA

Thread Code1
0420

Length Code
12

L - Length ± .005

 View
.375 in

E Nom.
.375 in

Minor Dia.Min.
.197 in

Minor Dia.Max.
.207 in

Thread Specification
2B per ASME B1.1

Standard Material
Aluminum

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.


 MORE IMAGES 

·  Configuration for STKB/STKC



 DOWNLOADS 

PEM SI Bulletin

Compression Limiter Capability


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