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Hex Coupling

Hex Coupling for Sale Hex Coupling for Sale Hex Coupling for Sale

Standard Pattern Nuts
SAE J995 Grade 2, ASTM A563


Zinc = NCUP020----Z1

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Nominal Size F C H Weight per C
Width Across Flats Width Across Corners Thickness
Max Min
#4 5/16     7/16 .5
#6 5/16     1/2 .5
#8 5/16     5/8 1.1
#10 5/16     3/4 1.3
1/4 7/16 0.505 0.488 1-1/2 6.2
5/16 1/2 0.577 0.557 1-1/8 7.5
3/8 5/8 0.650 0.628 1-3/4 9
7/16 5/8 0.794 0.768 1-3/4 10
1/2 3/4 .866 .839 1-3/4 10.4
5/8 15/16 1.083 1.051 2-1/8 18
3/4 1-1/8 1.299 1.240 2-1/4 28
7/8 1-5/16 1.516 1.447 2-1/2 55
1 1-1/2 1.732 1.653 2-3/4 56
1-1/8 1-11/16 1.949 1.859 3 66
1-1/4 1-7/8 2.165 2.066 3-3/4 143
1-3/8 2-1/16 2.382 2.273    
1-1/2 2-1/4 2.598 2.480 4 188

Economy Pattern Nuts
SAE J995 Grade 2, ASTM A563


Zinc = NCUP020----Z1-ECON

Economy

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Nominal Size F C H Weight per C
Width Across Flats Width Across Corners Thickness
Max Min
1/4 3/8 0.505 0.488 7/8 1.9
5/16 7/16 0.577 0.557 7/8 3.8
3/8 1/2 0.650 0.628 1-1/8 3.5
7/16 9/16 0.794 0.768 1-1/4 4.7
1/2 5/8 .866 .839 1-1/4 5.5
5/8 13/16 1.083 1.051 1-7/8 16

Disclaimer: The dimensions listed are for reference only. Sizes not listed may be available off the shelf or can be manufactured to customer requirements.

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