Dimensions of ASME B18.6.9 Wing Nuts Type C Style 1

Nominal Size or Basic Major Dia. of Thread	Threads per inch	Series	Nut Blank Size	Wing Spread, A		Wing Height, B		Wing Thickness, C		Between Wings, D		Boss Diameter, E		Boss Diameter, F		Boss Height, G
				Max	Min	Max	Min	Max	Min	Max	Min	Max	Min	Max	Min	Max	Min
4	40	Regular	AA	0.66	0.64	0.36	0.35	0.11	0.09	0.18	0.16	0.27	0.25	0.32	0.30	0.16	0.14
5	40	Regular	AA	0.66	0.64	0.36	0.35	0.11	0.09	0.18	0.16	0.27	0.25	0.32	0.30	0.16	0.14
6	32	Regular	AA	0.66	0.64	0.36	0.35	0.11	0.09	0.18	0.16	0.27	0.25	0.32	0.30	0.16	0.14
6	32	Heavy	A	0.85	0.83	0.43	0.42	0.14	0.12	0.29	0.27	0.38	0.36	0.41	0.40	0.20	0.18
8	32	Regular	A	0.85	0.83	0.43	0.42	0.14	0.12	0.29	0.27	0.38	0.36	0.41	0.40	0.20	0.18
10	24 and 32	Regular	A	0.85	0.83	0.43	0.42	0.14	0.12	0.29	0.27	0.38	0.36	0.41	0.40	0.20	0.18
12	24	Regular	A	0.85	0.83	0.43	0.42	0.14	0.12	0.29	0.27	0.38	0.36	0.41	0.40	0.20	0.18
12	24	Heavy	B	1.08	1.05	0.57	0.53	0.16	0.14	0.32	0.30	0.44	0.42	0.48	0.46	0.23	0.21
1/4	20 and 28	Regular	B	1.08	1.05	0.57	0.53	0.16	0.14	0.32	0.30	0.44	0.42	0.48	0.46	0.23	0.21
5/16	18 and 24	Regular	C	1.23	1.20	0.64	0.62	0.20	0.18	0.39	0.35	0.50	0.49	0.57	0.55	0.26	0.24
3/8	16 and 24	Regular	D	1.45	1.42	0.74	0.72	0.23	0.21	0.46	0.42	0.62	0.60	0.69	0.67	0.29	0.27
7/16	14 and 20	Regular	E	1.89	1.86	0.91	0.90	0.29	0.28	0.67	0.65	0.75	0.73	0.83	0.82	0.38	0.37
7/16	14 and 20	Heavy	EH	1.89	1.86	0.93	0.91	0.34	0.33	0.63	0.62	0.81	0.79	0.89	0.87	0.42	0.40
1/2	13 and 20	Regular	E	1.89	1.86	0.91	0.90	0.29	0.28	0.67	0.65	0.75	0.73	0.83	0.82	0.38	0.37
1/2	13 and 20	Heavy	EH	1.89	1.86	0.93	0.91	0.34	0.33	0.63	0.62	0.81	0.79	0.89	0.87	0.42	0.40

Note :

• Sizes shown in boldface are preferred.