Dimensions of ASME B18.6.9 Wing Nuts, Type D Style 3

Nominal Size or Basic Major Diameter of Thread	Threads per inch	Series	Nut Blank Size	Wing Spread, A		Wing Height, B		Wing Thickness, C		Minimum Between Wings, D	Boss Diameter, E		Minimum Boss Height, G	Minimum Wall Height, H	Stock Thickness, T
				Max	Min	Max	Min	Max	Min		Max	Min			Max	Min
10	24 and 32	Light	A	1.31	1.25	0.48	0.42	0.29	0.23	0.47	0.65	0.59	0.08	0.12	0.04	0.03
10	24 and 32	Regular	C	1.40	1.34	0.53	0.47	0.25	0.19	0.50	0.75	0.69	0.08	0.14	0.04	0.03
12	24	Regular	B	1.28	1.22	0.40	0.34	0.23	0.17	0.59	0.73	0.67	0.11	0.12	0.04	0.03
1/4	20	Light	B	1.28	1.22	0.40	0.34	0.23	0.17	0.59	0.73	0.67	0.11	0.12	0.04	0.03
1/4	20	Regular	E	1.78	1.72	0.66	0.60	0.31	0.25	0.70	1.03	0.97	0.14	0.17	0.06	0.04
1/4	20	Heavy	D	1.47	1.40	0.50	0.44	0.37	0.31	0.66	1.03	0.97	0.14	0.14	0.08	0.06
5/16	18	Regular	E	1.78	1.72	0.66	0.60	0.31	0.25	0.70	1.03	0.97	0.14	0.17	0.06	0.04
5/16	18	Heavy	D	1.47	1.40	0.50	0.44	0.37	0.31	0.66	1.03	0.97	0.14	0.14	0.08	0.06