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

Nickel Systems stocks a wide range of machine screw hex nuts in various exotic alloys. Check out our dimensioning and specification data below to select the right fastener for your next project.

Download our Machine Screw Hex Nut Dimensioning Table

Dimensions


Nominal Size	Basic Major Diameter of Thread	F			G		H
		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
1	0.073	5/32	0.150	0.156	0.171	0.180	0.043	0.050
2	0.086	3/16	0.180	0.188	0.205	0.217	0.057	0.066
3	0.099	3/16	0.180	0.188	0.205	0.217	0.057	0.066
4	0.112	1/4	0.241	0.250	0.275	0.289	0.087	0.098
5	0.125	5/16	0.302	0.312	0.344	0.361	0.102	0.114
6	0.138	5/16	0.302	0.312	0.344	0.361	0.102	0.114
8	0.164	11/32	0.332	0.344	0.378	0.397	0.117	0.130
10	0.190	3/8	0.362	0.375	0.413	0.433	0.117	0.130
12	0.216	7/16	0.423	0.438	0.482	0.505	0.148	0.161
1/4	0.250	7/16	0.423	0.438	0.482	0.505	0.178	0.193
5/16	0.312	9/16	0.545	0.562	0.621	0.65	0.208	0.225
3/8	0.375	5/8	0.607	0.625	0.692	0.722	0.239	0.257

Machine Screw Hex Nut Specifications

Standard
- ASME / ANSI
  - ASME B18.2.2 – 2022
Metric
- IFI
- DIN
  - DIN 934

Three Blue Hexagons Are Lined Up On A White Background

Check out our Machine Screw Hex Nut Sample Products

Machine Screw Hex Nut #10 Incoloy 800H Material

Machine Screw Hex Nut #10 Titanium Grade 2 Material

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.