Wood wheel bolt with 7/16-14 thread. Used
for clamping the spoke in the steel hub for wooden wheels as used on
1912
Mitchell and possibly others.
Material: 4140 Steel, heat treated to grade 8
Finish: Natural
Thread: 7/16-14
Thread length: 1.365
OAL: 2.725
Head: .763 OD x .350
Length under head: 2.375