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 Wing

Stud Material

 N/A 300 Series CRES per AMS-QQ-S-763, ASTM A276 or ASTM A580

Cup Material

 N/A 300 Series CRES per ASTM A240

Spring & Cross Pin Material

 N/A Cobalt Alloy

Finish

 N/A Passivate per AMS-QQ-P-35

Spring Finish

 N/A Black Oxide per MIL-F-495

Dash Number

 N/A 1.000

L

 N/A 0.511-0.526 in

S

 N/A 0.760 in

Notes

Notes

 N/A 1. Cross pin must withstand 50 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 = 0.73 + (0.030 x Dush Number)