Hex head cap screw with high head made to 1933 SAE standards so it is appropriate for antique and vintage automobiles produced before 1940.
Material: 4140 Steel, heat treat grade 8
Finish: Natural
Thread: 3/8-16
Thread length: 5/8
Length under head: 3/4
Hex: 9/16
Head height: 9/32
OAL: 1 1/32