Heavy Hex Slotted Nuts

ASME SA194 Dimensions of Heavy Hex Slotted Nuts

All dimensions are in mm unless mentioned otherwise

Nominal Size inch	Basic Major Diameter of Thread	Widtf Across Flats, F			Width Across Corners, G		Thickness , H			Unslotted Thickness,T		Width of Slot,S		Maximum Runout of Bearing Surface to Thread Axis,FIM
Nominal Size inch	Basic Major Diameter of Thread	Basic inch	Min.	Max	Min.	Max	Basic inch	Min.	Max	Min.	Max	Min.	Max	Maximum Runout of Bearing Surface to Thread Axis,FIM
1/4	0.2500	1/2	0.488	0.500	0.556	0.577	15/64	0.218	0.250	0.13	0.15	0.07	0.10	0.017
5/16	0.3125	9/16	0.546	0.562	0.622	0.650	19/64	0.280	0.314	0.19	0.21	0.09	0.12	0.020
3/8	0.3750	11/16	0.669	0.688	0.763	0.794	23/64	0.341	0.377	0.22	0.24	0.12	0.15	0.021
7/16	0.4375	3/4	0.728	0.750	0.830	0.866	27/64	0.403	0.441	0.26	0.28	0.12	0.15	0.022
1/2	0.5000	7/8	0.850	0.875	0.969	1.010	31/64	0.464	0.504	0.32	0.34	0.15	0.18	0.023
9/16	0.5625	15/16	0.909	0.938	1.037	1.083	35/64	0.526	0.568	0.35	0.37	0.15	0.18	0.024
5/8	0.6250	1 1/16	1.031	1.062	1.175	1.227	39/64	0.587	0.631	0.38	0.40	0.18	0.24	0.025
3/4	0.7500	1 1/4	1.212	1.250	1.382	1.443	47/64	0.710	0.758	0.47	0.49	0.18	0.24	0.027
7/8	0.8750	1 7/16	1.394	1.438	1.589	1.660	55/64	0.833	0.885	0.59	0.62	0.18	0.24	0.029
1	1.0000	1 5/8	1.575	1.625	1.796	1.876	63/64	0.956	1.012	0.69	0.72	0.24	0.30	0.031
1 1/8	1.1250	1 13/16	1.756	1.812	2.002	2.093	1 7/64	1.079	1.139	0.75	0.78	0.24	0.33	0.033
1 1/4	1.2500	2	1.938	2.000	2.209	2.309	1 7/32	1.187	1.251	0.83	0.86	0.31	0.40	0.035
1 3/8	1.3750	2 3/16	2.119	2.188	2.416	2.526	1 11/32	1.310	1.378	0.95	0.99	0.31	0.40	0.038
1 1/2	1.5000	2 3/8	2.300	2.375	2.622	2.742	1 15/32	1.433	1.505	1.01	1.05	0.37	0.46	0.041
1 3/4	1.7500	2 3/4	2.662	2.750	3.035	3.175	1 23/32	1.679	1.759	1.20	1.24	0.43	0.52	0.048
2	2.0000	3 1/8	3.025	3.125	3.449	3.608	1 31/32	1.925	2.013	1.38	1.43	0.43	0.52	0.055
2 1/4	2.2500	3 1/2	3.388	3.500	3.862	4.041	2 13/64	2.155	2.251	1.62	1.67	0.43	0.52	0.061
2 1/2	2.5000	3 7/8	3.750	3.875	4.275	4.474	2 29/64	2.401	2.505	1.74	1.79	0.55	0.64	0.068
2 3/4	2.7500	4 1/4	4.112	4.250	4.688	4.907	2 45/64	2.647	2.759	1.99	2.05	0.55	0.64	0.074
3	3.0000	4 5/8	4.475	4.625	5.102	5.340	2 61/64	2.893	3.013	2.17	2.23	0.62	0.71	0.081
3 1/4	3.2500	5	4.838	5.000	5.515	5.774	3 3/16	3.124	3.252	2.41	2.47	0.62	0.71	0.087
3 1/2	3.5000	5 3/8	5.200	5.375	5.928	6.207	3 7/16	3.370	3.506	2.65	2.72	0.62	0.71	0.094
3 3/4	3.7500	5 3/4	5.562	5.750	6.341	6.640	3 11/16	3.616	3.760	2.90	2.97	0.62	0.71	0.100
4	4.0000	6 1/8	5.925	6.125	6.755	7.073	3 15/16	3.862	4.014	3.15	3.22	0.62	0.71	0.107