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  • Blind-end protects the threads from plastic intrusion.
  • Aluminum inserts ideal for light weight designs.
  • Aluminum and stainless steel inserts offer lead-free alternative.
Unit of Measure

Thread Size

.250-20 (1/4-20)

Type

IBA

Thread Code

0420

Length Code

12

A ± .005

.819 in
a1290.jpg

H Min.

.615 in

E Nom.

.344 in

C ± .005

.321 in

S1 Nom.

.060 in

S2 Nom.

.090 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®)