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 4002

Head Style

 N/A Knurled Cylindrical

Stud Head Material

 N/A Carbon Steel per QQ-S-633, FS BIII2

Stud Shank Material

 N/A Alloy Steel per ASTM A331, FS 4037

Spring Material

 N/A Music Wire per ASTM-A228, Steel, Spring

Spring Cup Material

 N/A Carbon Steel ASTM A108 FS BIII2 or BIII3 or Carbon Steel ASTM A684 FS 1050

Cross Pin Material

 N/A Music Wire per ASTM-A228, Steel, Spring

Finish

 N/A Chromium Plate per QQ-C-320, Type I, Class 1, except Spring

Spring Cup Finish

 N/A Cadmium Plate per QQ-P-416, Class 2 w/ Clear Chromate

Spring & Cross Pin Finish

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

L

 N/A 0.503-0.518 in

S

 N/A 0.680 in

Weight/100

 N/A 11.360 lb

Notes

N/A

  • The Cross pin of stud assembly with no suffix will withstand 50 Lbs. Push-out force. The Cross pin of stud assembly with suffix "A", suffix "B" or suffix "C" will withstand 175 Lbs. Push-out force. All will retain symmetrically about centerline of stud within ±.02.

    For Dash Number 16 and greater:
    L Min = 0.353 + (Dash Number x 0.030)
    L Max = L Min + 0.015
    S = 0.530 + (Dash Number x 0.030)
    Approx Weight (lb/100) for No Suffix= 11.37 + (Dash Number x 0.0195)
    Approx Weight (lb/100) for Suffix "A", "B" or "C"= 11.17 + (Dash Number x 0.0193)