7/16-14 Steel bolt used on the rim of wooden automobile wheels such as those used on 1910 National and possibly other early cars. Knurling grips the wood and prevents the bolt from spinning once installed.
Material: 4140, heat treat grade 8
Finish: Natural
Thread: 7/16-14
Thread length: 1.093
OAL: 3.425
Length under head: 3.085
Head OD: .750
Square block: .475 x .475 x .084
Knurl length: .525
