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Heavy Square Nuts [Table 9] (SAE J995 / ASTM F594 / F467)

ASME B 18.2.2 - 2022

Display drawing:

Screw Thread
d

1/4

5/16

3/8

7/16

1/2

5/8

3/4

7/8

1-1/8

1-1/4

1-3/8

1-1/2

d
PP	UNC
	UNF
	8-UN
s	Nominal Size
	min
	max
e	min
	max
k	Nominal Size
	min
	max

0.2500	0.3125	0.3750	0.4375	0.5000	0.6250	0.7500	0.8750	1.0000	1.1250	1.2500	1.3750	1.5000
20	18	16	14	13	11	10	9	8	7	7	6	6
28	24	24	20	20	18	16	14	12	12	12	12	12
-	-	-	-	-	-	-	-	-	8	8	8	8
1/2	9/16	11/16	3/4	7/8	1-1/16	1-1/4	1-7/16	1-5/8	1-13/16	2	2-3/16	2-3/8
0.488	0.546	0.669	0.728	0.850	1.031	1.212	1.394	1.575	1.756	1.938	2.119	2.300
0.500	0.562	0.688	0.750	0.875	1.062	1.250	1.438	1.625	1.812	2.000	2.188	2.375
0.640	0.720	0.889	0.970	1.137	1.386	1.635	1.884	2.132	2.381	2.631	2.879	3.128
0.707	0.795	0.973	1.060	1.237	1.503	1.768	2.033	2.298	2.563	2.828	3.094	3.359
1/4	5/16	3/8	7/16	1/2	5/8	3/4	7/8	1	1-1/8	1-1/4	1-3/8	1-1/2
0.218	0.280	0.341	0.403	0.464	0.587	0.710	0.833	0.956	1.079	1.187	1.310	1.433
0.266	0.330	0.393	0.456	0.520	0.647	0.774	0.901	1.028	1.155	1.282	1.409	1.536

Alternative history

ANSI/ASME B 18.2.2 - 1987(R1999) ANSI/ASME B 18.2.2 - 2010 ASME B 18.2.2 - 2015 ASME B 18.2.2 - 2022

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