Hex Nuts

Also known as finished hex nuts, Hex nuts come in ASTM A563-A and are compatible with various low carbon steel bolts including ASTM A307, SAE grade 2, ASTM F1554 grade 36, and AASHTO M183. Moreover, SAE Grade 5 & Grade 8 nuts are available in finished pattern as well. As hot-dip galvanizing generally adds 2.2 – 5 mils thickness to a fastener’s threaded portion, our galvanized hex nuts get tapped oversize so as to balance the bolts’ corrosion resistant coating.

Stock

Diameters: 3/8″ – 1-1/2″
Grade: ASTM A563
Origin: Domestic and import
Finish: Plain and hot-dip galvanized

Dimensions

Click to show drawing
Nominal Size F C H Part Numbers
Width Across Flats Width Across Corners Thickness Domestic Import
Basic Max Min Max Min Basic Max Min Plain Galvanized Plain Galvanized
12 34 0.750 0.736 0.866 0.840 716 0.448 0.427 16270 16271 11701 11702
58 1516 0.938 0.922 1.083 1.051 3564 0.559 0.535 16272 16273 11703 11704
34 118 1.125 1.088 1.299 1.240 4164 0.665 0.617 16274 16275 11705 11706
78 1516 1.312 1.269 1.516 1.447 34 0.776 0.724 16276 16277 11707 11708
1 112 1.500 1.450 1.732 1.653 5564 0.887 0.831 16278 16279 11709 11710
118 11116 1.688 1.631 1.949 1.859 3132 0.999 0.939 16280 16281 11711 11712
114 178 1.875 1.812 2.165 2.066 1116 1.094 1.030 16282 16283 11713 11714
138 2116 2.062 1.994 2.382 2.273 11164 1.206 1.138 11715 11716
112 214 2.250 2.175 2.598 2.480 1932 1.317 1.245 16286 16287 11717 11718

Dimensions per ASME B18.2.2 1987 (1999)