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Unit of Measure

Part Type

N/A Stud Assembly

Series

N/A 27S3

Head Style

N/A #2 Cross Recess

Stud Material

N/A 4037 Steel per AMS 6300, ASTM A331, ASTM A322, ASTM A752 or 1008-1010 Steel per ASTM A108

Cup Material

N/A Steel per ASTM A109

Spring & Cross Pin Material

N/A Music Wire per ASTM A228

Stud & Cup Finish

N/A Chrome Plate per QQ-C-320, Class I, Type I (Bright)

Spring & Cross Pin Finish

N/A Zinc Plate per ASTM B633, Class 5, with Clear Chromate

Dash Number

N/A 6.000

L

N/A 0.541-0.556

S

N/A 0.760

Notes

N/A Unless otherwise specified
1. Cross pin will withstand a pushout force of 50 lbs for cres, or 100 lbs for music wire and retain symmetry about centerline of stud within ±0.02.
2. Plus black dye color on stud and cup. Additional satinblack enamel on