Screw Size: #8 
Head: 7/16"
Stem Length: 9/32"
Hole Size: 5/16"

Fits many 1962-81 Chevy, Pontiac, Buick, Oldsmobile and Cadillac vehicles. Will fit most any make or model that uses the same size nuts.

Replaces:
G.M. # 3919773

Unit Package 25

ANY questions ask prior to purchasing. Thank You