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Unit of Measure

Series

4002

Head Style

Tamper Proof

Stud Material

Alloy Steel per ASTM A331

Spring Cup Material

Carbon Steel per ASTM A684

Spring & Cross Pin Material

Music Wire per ASTM A228

Finish

Zinc Plate per ASTM B633, Type III, Class 5 (Clear Chromate)

L

0.533-0.543 in

S

0.810 in

Weight/100

1.120 lb