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  • Designed for high load applications. Full hex feature for high torque applications.
  • Additional thread sizes and grip ranges are available.
  • Other materials available. Cadmium finish available upon request.
Unit of Measure

Thread Size

1/4-20

Grip Range

.020 - .085 in

Identification Mark

Blank

A ± .015

.406 in

B ± .015

.437 in
a1063_1.jpg

C Nom.

.043 in

D Max.

.296 in

Hex Hole Size In Sheet + .005 -.000

.297 in

Fastening

Uninstalled

Thread Specification

2B per ASME B1.1

Standard Material

Low Carbon Steel

Standard Finish

RoHS Compliant Zinc Yellow

Min. Tensile Strength (PSI Ult.)

45,000

CAD Supplier

PennEngineering® (Atlas®)