Hex Nuts

Hex nuts are also called finished hex nuts. These are available as ASTM A563-A and tend to be compatible with a range of low carbon steel bolts such as SAE grade 2, ASTM A307, ASTM F1554 grade 36 & AASHTO M183. Besides, we supply SAE Grade 5 and Grade 8 nuts in finished pattern. Since hot-dip galvanizing normally adds 2.2 – 5 mils thickness to the threaded portion of a fastener, our galvanized hex nuts usually get tapped oversize in order to balance the corrosion resistant coating of the bolts.

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)