Nuts

Flange Nuts

Dimensions of Hex Flange Nuts and Large Hex Flange Nuts

Nominal Size or Basic Major Diameter of Thread	F		G		B		H		J	K	Runout of Bearing Surface to Thread Axis, FIM
	Width Across Flats		Width Across Corners		Diameter Flange		Nut Thickness		Wrenching Length	Flange Thickness	Runout of Bearing Surface to Thread Axis, FIM
	Max	Min	Max	Min	Max	Min	Max	Min	Min	Min	Max
HEX FLANGE NUTS
No. 6 (0.1380)	0.312	0.302	0.361	0.342	0.422	0.406	0.171	0.156	0.10	0.02	0.014
8(0.1640)	0.344	0.334	0.397	0.381	0.469	0.452	0.203	0.187	0.13	0.02	0.016
10(0.1900)	0.375	0.365	0.433	0.416	0.500	0.480	0.219	0.203	0.13	0.03	0.017
12 (0 .2160)	0.438	0.428	0.505	0.488	0.594	0.574	0.236	0.222	0.14	0.04	0.020
1/4 (0.2500)	0.438	0.428	0.505	0.488	0.594	0.574	0.236	0.222	0.14	0.04	0.020
5/16 (0.3125)	0.500	0.489	0.577	0.557	0.680	0.660	0.283	0.268	0.17	0.04	0.023
3/8 (0.3750)	0.562	0.551	0.650	0.628	0.750	0.728	0.347	0.330	0.23	0.04	0.025
7/16 (0.4375)	0.688	0.675	0.794	0.768	0.937	0.910	0.395	0.375	0.26	0.04	0.032
1/2 (0.5000)	0.750	0.736	0.866	0.840	1.031	1.000	0.458	0.437	0.31	0.05	0.035
9/16 (0.5625)	0.875	0.861	1.010	0.982	1.188	1.155	0.506	0.483	0.35	0.05	0.040
5/8 (0.6250)	0.938	0.922	1.083	1.051	1.281	1.248	0.569	0.545	0.40	0.05	0.044
3/4 (0 .7500)	1.125	1.088	1.299	1.240	1.500	1.460	0.675	0.627	0.46	0.06	0.051
LARGE HEX FLANGE NUTS
1/4 (0.2500)	0.438	0.428	0.505	0.488	0.728	0.700	0.312	0.281	0.15	0.04	0.024
5/16 (0.3125)	0.500	0.489	0.577	0.557	0.820	0.790	0.375	0.343	0.20	0.04	0.028
3/8 (0.3750)	0.562	0.551	0.650	0.628	0.915	0.885	0.406	0.390	0.24	0.04	0.031
7/16 (0.4375)	0.688	0.675	0.794	0.768	1.131	1.100	0.468	0.437	0.26	0.04	0.038
1/2 (0.5000)	0.750	0.736	0.866	0.840	1.205	1.175	0.515	0.485	0.29	0.06	0.041
9/16 (0.5625)	0.875	0.861	1.010	0.982	1.300	1.260	0.578	0.546	0.37	0.06	0.044
5/8 (0.6250)	0.938	0.922	1.083	1.051	1.360	1.280	0.640	0.600	0.42	0.06	0.045