Dimensions for ASME B18.2.2 Thick Slotted Hex Nuts

Nominal Size	Basic Major Thread Diameter	Width Across Flats, F			Width Across Corners, G		Thickness, H			Unslotted Thickness, T		Width of Slot, S
		Basic	Min.	Max.	Min.	Max.	Basic	Min.	Max.	Min.	Max.	Min.	Max.
1/4	0.2500	7/16	0.428	0.438	0.488	0.505	9/32	0.274	0.288	0.180	0.20	0.07	0.10
5/16	0.3125	1/2	0.489	0.500	0.557	0.577	21/64	0.320	0.336	0.220	0.240	0.09	0.12
3/8	0.3750	9/16	0.551	0.562	0.628	0.650	13/32	0.398	0.415	0.270	0.290	0.12	0.15
7/16	0.4375	11/16	0.675	0.688	0.768	0.794	29/64	0.444	0.463	0.290	0.310	0.12	0.15
1/2	0.5000	3/4	0.736	0.750	0.840	0.866	9/16	0.552	0.573	0.400	0.420	0.15	0.18
9/16	0.5625	7/8	0.861	0.875	0.982	1.010	39/64	0.598	0.621	0.410	0.430	0.15	0.18
5/8	0.6250	15/16	0.922	0.938	1.051	1.083	23/32	0.706	0.731	0.490	0.510	0.18	0.24
3/4	0.7500	1 1/8	1.088	1.125	1.240	1.299	13/16	0.798	0.827	0.550	0.570	0.18	0.24
7/8	0.8750	1 5/16	1.269	1.312	1.447	1.516	29/32	0.890	0.922	0.640	0.670	0.18	0.24
1	1.0000	1 1/2	1.450	1.500	1.653	1.732	1	0.982	1.018	0.700	0.730	0.24	0.30
1 1/8	1.1250	1 11/16	1.631	1.688	1.859	1.949	1 5/32	1.136	1.176	0.800	0.830	0.24	0.33
1 1/4	1.2500	1 7/8	1.812	1.875	2.066	2.165	1 1/4	1.228	1.272	0.860	0.890	0.31	0.40
1 3/8	1.3750	2 1/16	1.994	2.062	2.273	2.382	1 3/8	1.351	1.399	0.980	1.020	0.31	0.40
1 1/2	1.5000	2 1/4	2.175	2.250	2.480	2.598	1 1/2	1.474	1.526	1.040	1.080	0.37	0.46