• 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 #10-32

Grip Range

N/A 0.065 to 0.116 in

Identification Mark

N/A Blank

B Ref.

N/A 0.391 in a-1058.jpg

C Max.

N/A 0.065 in

øD + 0.000 - 0.004

N/A 0.25 in

E Max.

N/A 0.302 in

F + 0.005 - 0.000

N/A 0.054 in

L ± 0.015

N/A 0.828 in

K Ref.

N/A 0.395 in

Install Drill Size Ref.

N/A 1/4

Install Hole Size Min.

N/A 0.250 in

Install Hole Size Max.

N/A 0.256 in

Pull up Factor

N/A 0.080 in

Weight per 1000

N/A 6.7 lb


N/A Uninstalled

Thread Specification

N/A 3B per ASME B1.1

Standard Material

N/A Low Carbon Steel

Standard Finish

N/A Cadmium Plate - 0.0003” minimum thickness per SAE AMS-QQ-P-416 Class 2, Type II

CAD Supplier

N/A PennEngineering® (Atlas®)

On Hand

N/A {0}