Machine Screw Hex Nuts

Machine Screw Hex Nuts

A machine screw hex nut is a six-sided internally threaded fastener that is meant to be paired with a machine screw. For this reason, machine screw hex nuts are limited to sizes ranging from #0 to #10. Due to their small size, these nuts are typically used for light-duty fastening applications.

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Specifications & Technical Data

Dimensions

Nominal Size Basic Major Diameter of Thread F G1 H Bearing Surface Runout to Thread Axis, FIM
Width Across Flats Width Across Corners Thickness
Basic Min Max Min Max Min Max
0 0.060 5/32 0.150 0.156 0.171 0.180 0.043 0.050 0.005
1 0.073 5/32 0.150 0.156 0.171 0.180 0.043 0.050 0.005
2 0.086 3/16 0.180 0.188 0.205 0.217 0.057 0.066 0.006
3 0.099 3/16 0.180 0.188 0.205 0.217 0.057 0.066 0.006
4 0.112 1/4 0.241 0.250 0.275 0.289 0.087 0.098 0.009
5 0.125 5/16 0.302 0.312 0.344 0.361 0.102 0.114 0.011
6 0.138 5/16 0.302 0.312 0.344 0.361 0.102 0.114 0.011
8 0.164 11/32 0.332 0.344 0.378 0.397 0.117 0.130 0.1012
10 0.190 3/8 0.362 0.375 0.413 0.433 0.117 0.130 0.013
12 0.216 7/16 0.423 0.438 0.482 0.505 0.148 0.161 0.015
1/4 0.250 7/16 0.423 0.438 0.482 0.505 0.178 0.193 0.015
5/16 0.312 9/16 0.545 0.562 0.621 0.65 0.208 0.225 0.020
3/8 0.375 5/8 0.607 0.625 0.692 0.722 0.239 0.257 0.021

 

Machine Screw Hex Nut Specifications

  • Standard (ASME/ANSI)
    • ASME B18.6.3
    • ASME B18.2.2 – 2010
  • Metric (IFI)
    • DIN 934
Three Blue Hexagons Are Lined Up On A White Background
Three Blue Hexagons Are Lined Up On A White Background Three Blue Hexagons Are Lined Up On A White Background

Industries We Serve

Nickel Systems provides high quality exotic grade materials that hold up in the toughest, most severe heat and corrosive environments. With our large inventory of specialty fasteners in stock, we are always ready to answer the call to serve the most challenging applications.

A Bunch Of Nuts And Bolts On A White Surface

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