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  • Works in any thickness over .029”/0.76mm including blind applications.
  • Minimal backside protrusion for restricted space applications.
  • Additional thread sizes and grip ranges available. Not a typical stock item.
  • Other materials available.
NOTE: The internal threads are manufactured oversized to compensate for resulting thread portion shrinkage during the installation process. They are not gaugeable prior to or after installation but will be compatible with Class 2A/3A or 6g screws after installation.
Unit of Measure

Thread Size

 N/A 5/16-18

Grip Range

 N/A .030 in - Over

A ± .005

 N/A .528 in a1040_1.jpg

øC Max.

 N/A .4995 in

D Ref.

 N/A .325 in

Installation Hole Size at Grip Range

 N/A .500 in at .030 - .090 in .500 in at .091 - .124 in .516 in at .125 - .186 in .516 in at .187 in - Over

Blind Hole Depth Min.

 N/A .640 in

Fastening

 N/A Installed

Standard Material

 N/A Low Carbon Steel

Standard Finish

 N/A Cadmium Plate per SAE AMS-QQ-P-416, Class III, Type I

CAD Supplier

 N/A PennEngineering® (Atlas®)