| HEX FLANGE BOLTS | |||||||||||||||||||
| HEAD DIMENSIONS | |||||||||||||||||||
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| Nominal Size or Basic Major Dia. of Thread | Body Diameter | Width Across Flats | Width Across Corners | Flange Diameter | Flange Thickness | ||||||||||||||
| Max. | Min. | Basic | Max. | Min. | Max. | Min. | Max. | Min. | |||||||||||
| 1/4 | 0.2500 | 0.2500 | 0.2450 | 3/8 | 0.3750 | 0.367 | 0.433 | 0.409 | 0.56 | 0.04 | |||||||||
| 5/16 | 0.3125 | 0.3125 | 0.3065 | 1/2 | 0.5000 | 0.489 | 0.577 | 0.548 | 0.68 | 0.05 | |||||||||
| 3/8 | 0.3750 | 0.3450 | 0.3690 | 9/16 | 0.5625 | 0.551 | 0.650 | 0.618 | 0.81 | 0.06 | |||||||||
| 7/16 | 0.4375 | 0.4375 | 0.4305 | 5/8 | 0.6250 | 0.612 | 0.722 | 0.685 | 0.93 | 0.07 | |||||||||
| 1/2 | 0.5000 | 0.5000 | 0.4930 | 3/4 | 0.7500 | 0.736 | 0.866 | 0.825 | 1.07 | 0.08 | |||||||||
| 9/16 | 0.5625 | 0.5625 | 0.5545 | 13/16 | 0.8125 | 0.798 | 0.938 | 0.895 | 1.19 | 0.09 | |||||||||
| 5/8 | 0.6250 | 0.6250 | 0.6170 | 15/16 | 0.9375 | 0.922 | 1.083 | 1.034 | 1.33 | 0.10 | |||||||||
| 3/4 | 0.7500 | 0.7500 | 0.7410 | 1-1/8 | 1.1250 | 1.100 | 1.299 | 1.234 | 1.59 | 0.11 | |||||||||
