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Online literature contains the most current information available.
  • Features a low-profile.
  • Allows near-flush installations with no need for special hole preparations such as countersinking or dimpling.
  • Additional thread sizes and grip ranges available.
Unit of Measure

Thread Size

N/A 1/4-28

Grip Range

N/A .030 - .165 in

B ± .015

N/A .425 in a1036.jpg

C Nom.

N/A .022 in

øD Max.

N/A .374 in

M Ref.

N/A .440 in

Hole Size in Sheet + .006 - .000

N/A .375 in


N/A Installed

Thread Specification

N/A 2B per ASME B1.1

Standard Material

N/A Low Carbon Steel

Standard Finish

N/A RoHS Compliant Zinc Clear Plus Lubricant

CAD Supplier

N/A PennEngineering® (Atlas®)