US Shoulder Bolt Dimensions
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Shoulder Diameter (A) |
Thread (C) |
Thread Length (D) |
Head Diameter (E) |
Head Height (F) |
Allen Wrench Size |
|---|---|---|---|---|---|
| 1/8" | #4-40 | 3/32" | 1/4" | 1/8" | 5/64" |
| 3/16" | #8-32 | 3/16" | 5/16" | 5/32" | 3/32" |
| 1/4" | #10-24 | 3/8" | 3/8" | 3/16" | 1/8" |
| 5/16" | 1/4"-20 | 7/16" | 7/16" | 7/32" | 5/32" |
| 3/8" | 5/16"-18 | 1/2" | 9/16" | 1/4" | 3/16" |
| 1/2" | 3/8"-16 | 5/8" | 3/4" | 5/16" | 1/4" |
| 5/8" | 1/2"-13 | 3/4" | 7/8" | 3/8" | 5/16" |
| 3/4" | 5/8"-11 | 7/8" | 1" | 1/2" | 3/8" |
| 1" | 3/4"-10 | 1" | 1-5/16" | 5/8" | 1/2" |
| 1-1/4" | 7/8"-9 | 1-1/8" | 1-3/4" | 3/4" | 5/8" |