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  • Designed for high load applications. Countersunk feature allow fastener to be installed flush with sheet surface.
  • Both UNC and UNF threads available in No. 10 and larger thread sizes. Check for availability of other grip ranges and designs.
Unit of Measure

Thread Size

 N/A 3/8-16

Grip Range

 N/A .211 - .296 in

Identification Mark

 N/A 1 Rad.

B Ref.

 N/A .770 in a1058_1.jpg

C Max.

 N/A .124 in

øD + .000 - .004

 N/A .490 in

E Max.

 N/A .597 in

F + .005 -.000

 N/A .120 in
L ± .0151 N/A 1.468 in

K Ref.

 N/A .655 in

Install Drill Size Ref.

 N/A 12.5mm

Install Hole Size Min.

 N/A .490 in

Install Hole Size Max.

 N/A .500 in

Pull Up Factor

 N/A .155 in

Weight per 1000

 N/A 44.1 lb

Fastening

 N/A Uninstalled

Thread Specification

 N/A 3B per ASME B1.1

Standard Material

 N/A 4037 Alloy Steel

Standard Finish

 N/A Cadmium Plate - .0003” minimum thickness per SAE AMS-QQ-P-416 Class 2, Type II

CAD Supplier

 N/A PennEngineering® (Atlas®)
  • 1 The “L” dimension is the height of the installed stud at max grip. The height of the stud will increase if it is installed into thinner material. To calculate “actual L” use this formula: max grip - actual grip + L = “actual L”