Howmet Fastening Systems
Howmet Fastening Systems
Phone: Sales +1 800 992 4444
Technical Support +1 310 784 6409
Email: HFSTechSupport@howmet.com
Website: www.hfs.howmet.com
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Unit of Measure

Specifications

Series

 N/A 2600

Head Style

 N/A Knurled

Stud Material

 N/A 4037 Alloy Steel per AMS 6300, ASTM A331, ASTM A752 or 8740 Alloy Steel per AMS-S-6040 or AMS 6322

Cup Material

 N/A Carbon Steel per ASTM A109

Spring & Cross Pin Material

 N/A Music Wire per ASTM A228

Stud & Cup Finish

 N/A Nickel Plate per QQ-N-290, Type IV, Class 1

Spring & Cross Pin Finish

 N/A Cadmium Plate per QQ-P-416, Type II, Class 2

Dash Number

 N/A 8.000

L

 N/A 0.721-0.736 in

S

 N/A 0.900 in

Notes

Notes

 N/A 1. Cross pin will withstand 100 lbs, pushout force and remain symmetry about centerline of stud within ±0.002.
2. For -16 and longer use:
L MIN = 0.481 + (0.030 x Dash Number)
L MAX = L MIN + 0.015
S = 0.66 + (0.030 x Dush Number)