US Shoulder Bolt Dimensions

Shoulder DiameterThreadThread LengthHead DiameterHead HeightAllen Wrench Size
(A)(C)(D)(E)(F)
1/8″#4-403/32″1/4″1/8″5/64″
3/16″#8-323/16″5/16″5/32″3/32″
1/4″#10-243/8″3/8″3/16″1/8″
5/16″1/4″-207/16″7/16″7/32″5/32″
3/8″5/16″-181/2″9/16″1/4″3/16″
1/2″3/8″-165/8″3/4″5/16″1/4″
5/8″1/2″-133/4″7/8″3/8″5/16″
3/4″5/8″-117/8″1″1/2″3/8″
1″3/4″-101″1-5/16″5/8″1/2″
1-1/4″7/8″-91-1/8″1-3/4″3/4″5/8″