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  • Pilot diameter and undercuts allow plastic to flow into grooves providing high pullout resistance.
  • Aluminum inserts ideal for light weight designs.
  • Aluminum and stainless steel inserts offer lead-free alternative.
Unit of Measure

Thread Size

 N/A .250-20 (1/4-20)

Type

 N/A ITA
Thread Code1 N/A 0420

A ± .005

 N/A .375 in a1292_1.jpg

E Nom.

 N/A .344 in

C ± .005

 N/A .321 in

S1 Nom.

 N/A .060 in

S2 Nom.

 N/A .090 in

Minor Dia.Min.

 N/A .197 in

Minor Dia.Max.

 N/A .207 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.