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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This series utilizes a variety of grommets which must be installed into the top panel. They significantly enhance the system’s performance.
Contact us for strengths for stainless steel stud assemblies and for other styles, materials, or finishes.
Unit of Measure

Specifications

Series

 N/A 4002

Stud Material

 N/A 300 CRES per QQ-S-763, ASTM A276, ASTM 493, ASTM A580

Wing Material

 N/A 300 CRES per ASTM A240

Cup & Spacer Material

 N/A 300 CRES per ASTM A167, ASTM A240, ASTM A582, AMS-QQ-S-S763

Spring & Cross Pin Material

 N/A 300 CRES per QQ-S-763, ASTM A313

Head Style

 N/A Wing

Head Style of Wing

 N/A Fixed

Finish

 N/A Passivate per AMS2700

L1

 N/A 0.623-0.638 in

C

 N/A 0.412 in

S

 N/A 0.900 in

Ultimate Tensile Strength

 N/A 735.000 lb

Working Strength

 N/A 500.000 lb

Stud Grip Increments

 N/A 0.030 in

Minimum Preload

 N/A 50.000 lb

Maximum Service Temperature

 N/A 550.000 ºF

Weight/100

 N/A 1.758 lb

Notes

N/A

  • Cross Pin will withstand a pushout force of 50 lb for CRES or 100lb for Music Wire and retain symmetrical about centerline of stud within ±.020
  • Spacer(s) may be required for functionality purpose
  • Parts will meet all requirements of NASM5591
    For other Dash Numbers not listed use:
    L min = (Dash No. x .030) + .353
    L max = L min + .010
    S = (Dash No. x .03) + .63
    Approximate weight = lb/100
    Steel Slotted = .9172 + (Dash No. x .0193)
    Steel Wing = 1.562 + (Dash No. x .0193)
    Steel Knurled = 2.651 + (Dash No. x .0193)
    Cres Slotted = .930 + (Dash No. x .0195)
    Cres Wing = 1.582 + (Dash No. x .0195)