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Dimensions For Nuts
| MACHINE SCREW NUT DIMENSIONS - ANSI B18.6.3, and small pattern nuts | |||||||||||||
| Diameter of Screw | 0 | 1 | 2 | 3 | 4 | 5 | 6 | 8 | 10 | 12 | 1/4 | 5/16 | 3/8 |
| Machine Screw Width across Flats: inches |
5/32 | 5/32 | 3/16 | 3/16 | 1/4 | 5/16 | 5/16 | 11/32 | 3/8 | 7/16 | 7/16 | 9/16 | 5/8 |
| Machine Screw Thickness: inches |
3/64 | 3/64 | 1/16 | 1/16 | 3/32 | 7/64 | 7/64 | 1/8 | 1/8 | 5/32 | 3/16 | 7/32 | 1/4 |
| SMALL PATTERN Width across Flats |
1/8 | 1/8 | 5/32 | - | 3/16 | 1/4 | 1/4 | 1/4 | 5/16 | - | - | - | - |
| Thickness | 3/64 | 3/64 | 1/16 | - | 1/16 | 3/32 | 3/32 | 3/32 | 7/64 | - | - | - | - |
| Width across Flats | - | - | - | - | - | - | - | 5/16 | 11/32 | - | - | - | - |
| Thickness | - | - | - | - | - | - | - | 7/64 | 1/8 | - | - | - | - |
| DIMENSIONS OF FINISHED, JAM, HEAVY, HEAVY JAM - ANSI B18.2.2 | |||||||||||||
| 1/4 | 5/16 | 3/8 | 7/16 | 1/2 | 9/16 | 5/8 | 3/4 | 7.8 | 1 | 1-1/8 | 1-1/4 | 1-3/8 | |
| Finished Width Across Flats | 7/16 | 1/2 | 9/16 | 11/16 | 3/4 | 7/8 | 15/16 | 1-1/8 | 1-5/16 | 1-1/2 | 1-11/16 | 1-7/8 | 2-1/16 |
| Thickness FULL | 7/32 | 17/64 | 21/64 | 3/8 | 7/16 | 31/64 | 41/64 | 41/64 | 3/4 | 55/64 | 31/32 | 1/-1/16 | 1-11/64 |
| Thickness JAM | 5/32 | 3/16 | 7/32 | 1/4 | 5/16 | 5/16 | 3/8 | 27/64 | 31/64 | 35/64 | 39/64 | 23/32 | 27/32 |
| Heavy -- Width Across Flats | 1/2 | 8/16 | 11/16 | 3/4 | 7/8 | 15/16 | 1-1/16 | 1-1/4 | 1-7/16 | 1-5/8 | 1-13/16 | 2 | 3-3/16 |
| Thickness FULL | 15/64 | 19/64 | 23/64 | 27/64 | 31/64 | 35/64 | 39/64 | 47/64 | 55/64 | 63/64 | 1-7/64 | 1-7/32 | 1-11/32 |
| Thickness JAM | 11/64 | 13/64 | 15/64 | 17/64 | 19/64 | 21/64 | 23/64 | 27/64 | 31/64 | 35/64 | 39/64 | 23/32 | 25/32 |
| DIMENSIONS OF FINISHED, JAM, HEAVY, HEAVY JAM - ANSI B18.2.2 (continued...) | |||||||
| 1-1/2 | 1-5/8 | 1-3/4 | 1-7/8 | 2 | 2-1/4 | 2-1/2 | |
| Finished Width Across Flats | 2/14 | 2-7/16 | 2-5/8 | 2-13/16 | 3 | 3-3/8 | 3-3/4 |
| Thickness FULL | 1-9/32 | 1-25/64 | 1-1/2 | 1-39/64 | 1-23/32 | 1-59/64 | 2-9/64 |
| Thickness JAM | 2-3/8 | 2-9/16 | 2-3/4 | 2-15/16 | 3-1/8 | 3-1/2 | 3-7/8 |
| Heavy -- Width Across Flats | 27/32 | 29/32 | 31/32 | 1-1/32 | 1-3/32 | 1-13/64 | 1-29/64 |
| Thickness FULL | 15/32 | 1-19/32 | 1-23/32 | 1-27/32 | 1-31/32 | 2-13/64 | 2-29/64 |
| Thickness JAM | 27/32 | 29/32 | 31/32 | 1-1/32 | 1-3/32 | 1-13/64 | 1-29/64 |
| DIMENSIONS - SERRATED FLANGE NUTS - ANSI B18.2.2 | |||||||
| Diameter | 6 | 8 | 10 | 1/4 | 5/16 | 3/8 | 1/2 |
| Max. Width Across Flats | .312 | .344 | .375 | .438 | .500 | .562 | .750 |
| Max. Thickness | .171 | .203 | .219 | .236 | .283 | .347 | .458 |
| DIMENSIONS - NYLON INSERT NUTS | |||||||||||||
| Diameter | 2 | 3 | 4 | 5 | 6 | 8 | 10 | 12 | 1/4 | 5/16 | 3/8 | 7/16 | 1/2 |
| Width Ac. Fl. Reg. & Thin NM, NE, NTM, NTE |
.250 | .250 | .250 | .250 | .312 | .344 | .275 | .438 | .438 | .500 | .563 | .625 | .750 |
| Height-Regular- NM, NE |
.141 | .141 | .141 | .141 | .172 | .234 | .234 | .313 | .313 | .344 | .453 | .453 | .594 |
| Height-Thin- NTM, NTE |
- | - | .109 | - | .125 | .172 | .172 | - | .203 | .250 | .266 | .313 | .313 |
| Width Ac. Fl. - Heavy - NU, NTU |
- | - | - | - | - | - | - | - | .500 | .563 | .687 | .750 | .875 |
| Height-Heavy - NU | - | - | - | - | - | - | - | - | .375 | .438 | .547 | .593 | .703 |
| -Height-Heavy Jam NU |
- | - | - | - | - | - | - | - | .281 | .313 | .406 | .437 | .531 |
| DIMENSIONS - NYLON INSERT NUTS (continued...) | ||||||||
| Diameter | 9/16 | 5/8 | 3/4 | 7/8 | 1 | 1-1/8 | 1-1/4 | 1-1/2 |
| Width Ac. Fl. Reg. & Thin NM, NE, NTM, NTE |
.875 | .938 | 1.063 | 1.250 | 1.440 | 1.625 | 1.810 | 2.197 |
| Height-Regular- NM, NE |
.640 | .750 | .875 | .984 | 1.047 | 1.187 | 1.406 | 1.625 |
| Height-Thin- NTM, NTE |
- | .391 | .406 | .468 | .562 | .656 | .750 | .812 |
| Width Ac. Fl. - Heavy - NU, NTU |
- | 1.06 | 1.125 | 1.440 | 1.627 | 1.814 | 2.000 | 2.380 |
| Height-Heavy - NU | - | .859 | 1.000 | 1.125 | 1.296 | 1.438 | 1.625 | 1.906 |
| Height-Heavy Jam -NU |
- | .609 | .703 | .781 | .906 | - | 1.093 | 1.296 |
| DIMENSIONS - CAP NUTS | |||||||||||||
| Diameter | 4 | 6 | 8 | 10 | 12 | 1/4 | 5/16 | 3/8 | 7/16 | 1/2 | 5/8 | 3/4 | |
| Stainless | Width Across Flats | 1/4 | 5/16 | 5/16 | 3/8 | 3/8 | 7/16 | 9/16 | 5/8 | 5/8 | 3/4 | 1 | 1-1/16 |
| Height Overall +- .010 in. | 1/4 | 19/64 | 5/16 | 25/64 | 27/64 | 15/32 | 17/32 | 5/8 | 23/32 | 13/16 | 63/64 | 1-3/16 | |
| Brass and Aluminum |
Width Across Flats | 1/4 | 5/16 | 5/16 | 3/8 | 3/8 | 7/16 | 9/16 | 5/8 | 3/4 | 3/4 | 1 | 1-1/16 |
| Height Overall +- .010 in. | 1/4 | 9/32 | 9/32 | 11/32 | 11/32 | 3/8 | 7/16 | 1/2 | 9/16 | 9/16 | 3/4 | 7/8 | |
| DIMENSIONS - WING NUTS | ||
| Diameter | Wing Span Max/Min |
Thickness (nom.) |
| 4 | .72/.59 | .125 |
| 6 | .72/.59 | .125 |
| 8 | .91/.78 | .171 |
| 10 | .91/.78 | .171 |
| 1/4 | 1.10/.97 | .187 |
| DIMENSIONS - WING NUTS | ||
| Diameter | Wing Span Max/Min |
Thickness (nom.) |
| 5/16 | 1.25/1.12 | .238 |
| 3/8 | 1.49/1.31 | .250 |
| 1/2 | 1.94/1.81 | .350 |
| 5/8 | 2.31/2.24 | .391 |
| 3/4 | 2.76/2.62 | .391 |
| DIMENSIONS - COUPLING NUTS | ||||||||||||
| Diameter | 4/40 | 6/32 | 8/32 | 10/24-32 | 1/4 | 5/16 | 3/8 | 7/16 | 1/2 | 5/8 | 3/4 | 7/8 |
| Width Across Flats | 5/16 | 5/16 | 5/16 | 3/8 | 3/8 | 7/16 | 1/2 | 11/16 | 5/8 | 7/8 | 1 | 1-1/4 |
| Length | 7/16 | 1/2 | 1/2 | 3/4 | 7/8 | 1 | 1-1/8 | 1-5/16 | 1-1/4 | 1-3/4 | 2 | 2-1/2 |
| DIMENSIONS - COUPLING NUTS (continued...) | ||||
| Diameter | 1 | 1-1/8 | 1-1/4 | 1-1/2 |
| Width Across Flats | 1-3/8 | 1-1/2 | 1-5/8 | 2 |
| Length | 2-1/2 | 3 | 3 | 3-1/2 |
Numbers are for general information only. Absolute Stainless Inc. accepts no liabilities for any inconsistencies or inaccuracies.