A325 Structural Bolts

Bolt Diameter	D	F			C		H			T
	Body Diameter	Width Across Flats			Width Across Corners		Height			Thread Length
	Max	Basic	Max	Min	Max	Min	Basic	Max	Min	Basic
¹⁄₂	0.515	⁷⁄₈	0.875	0.850	1.010	0.969	⁵⁄₁₆	0.323	0.302	1.00
⁵⁄₈	0.642	1¹⁄₁₆	1.062	1.031	1.227	1.175	²⁵⁄₆₄	0.403	0.378	1.25
³⁄₄	0.768	1¹⁄₄	1.250	1.212	1.443	1.383	¹⁵⁄₃₂	0.483	0.455	1.38
⁷⁄₈	0.895	1⁷⁄₁₆	1.438	1.394	1.660	1.589	³⁵⁄₆₄	0.563	0.531	1.50
1	1.022	1⁵⁄₈	1.625	1.575	1.876	1.796	³⁹⁄₆₄	0.627	0.591	1.75
1¹⁄₈	1.149	1¹³⁄₁₆	1.812	1.756	2.093	2.002	¹¹⁄₁₆	0.718	0.658	2.00
1¹⁄₄	1.277	2	2.00	1.938	2.309	2.209	²⁵⁄₃₂	0.813	0.749	2.00
1³⁄₈	1.404	2³⁄₁₆	2.188	2.119	2.526	2.416	²⁷⁄₃₂	0.878	0.810	2.25
1¹⁄₂	1.531	2³⁄₈	2.375	2.300	2.742	2.622	¹⁵⁄₁₆	0.974	0.902	2.25
Dimensions per ASME B18.2.6 2011

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