• Large flange for increased strength in punched holes
  • Thicker walls than CFH to provide for higher performance
Unit of Measure

Thread Size

 5/16-18 UNC

Grip Range
(Min.-Max.)

 .100 - .180 in

HD (Min.)

 .579

HD (Max.)

 .609

L
±.015

 .703

HT
Nom.

 .062

D (A/F)
Max.

 .397

IL (Ref.)

 .405

Hole Size (A/F)
+.010/-.000

 .397