Hex Thick 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	7/16	0.428	0.438	0.488	0.505	9/32	0.274	0.288	0.18	0.200	0.07	0.10	0.015
5/16	0.3125	1/2	0.489	0.500	0.577	0.577	21/64	0.320	0.336	0.22	0.240	0.09	0.12	0.016
3/8	0.3745	9/16	0.551	0.562	0.628	0.650	13/32	0.398	0.415	0.27	0.290	0.12	0.15	0.017
7/16	0.4375	11/16	0.675	0.688	0.768	0.794	29/64	0.444	0.463	0.29	0.310	0.12	0.15	0.018
1/2	0.5000	3/4	0.736	0.750	0.840	0.866	9/16	0.552	0.573	0.40	0.420	0.15	0.18	0.019
9/16	0.5625	7/8	0.861	0.875	0.982	1.010	39/64	0.598	0.621	0.41	0.430	0.15	0.18	0.020
5/8	0.6250	15/16	0.922	0.938	1.051	1.083	23/32	0.706	0.731	0.49	0.510	0.18	0.24	0.021
3/4	0.7500	1 1/2	1.088	1.125	1.240	1.299	13/16	0.798	0.827	0.55	0.570	0.18	0.24	0.023
7/8	0.8750	1 11/16	1.269	1.312	1.447	1.516	29/32	0.890	0.922	0.64	0.670	0.18	0.24	0.025
1	1.0000	1 1/2	1.450	1.500	1.653	1.732	1	0.982	1.018	0.70	0.730	0.24	0.30	0.027
1 1/8	1.1250	1 11/16	1.631	1.688	1.859	1.949	1 5/32	1.136	1.176	0.80	0.830	0.24	0.33	0.030
1 1/4	1.2500	1 7/8	1.812	1.875	2.066	2.165	1 1/4	1.228	1.272	0.86	0.890	0.31	0.40	0.033
1 3/8	1.3750	2 1/16	1.994	2.062	2.273	2.382	1 3/8	1.351	1.399	0.98	1.020	0.31	0.40	0.036
1 1/2	1.5000	2 1/4	2.175	2.250	2.480	2.598	1 1/2	1.474	1.526	1.04	1.080	0.37	0.46	0.039