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![]() | Flange |
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About Nuts, Materials, and Finishes
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Steel High-Torque 12-Point Flange Nuts

With more points of contact than a hex, these flange nuts allow you to get a better grip for more driver torque. The flange distributes pressure where the nut meets the material surface, eliminating the need for a separate washer. They have a black-oxide finish for mild corrosion resistance in dry environments. Height includes the flange.
For technical drawings and 3-D models, click on a part number.
Flange | ||||||
---|---|---|---|---|---|---|
Thread Size | Wd. | Ht. | Dia. | Thick. | Each | |
Black-Oxide Steel | ||||||
1/4"-20 | 5/16" | 19/64" | 7/16" | 0.06" | 000000000 | 00000 |
1/4"-28 | 5/16" | 19/64" | 7/16" | 0.06" | 000000000 | 0000 |
5/16"-18 | 3/8" | 11/32" | 17/32" | 0.08" | 000000000 | 0000 |
5/16"-24 | 3/8" | 11/32" | 17/32" | 0.08" | 000000000 | 0000 |
11/32"-24 | 7/16" | 25/64" | 41/64" | 0.13" | 000000000 | 0000 |
3/8"-16 | 7/16" | 25/64" | 5/8" | 0.09" | 000000000 | 0000 |
3/8"-24 | 7/16" | 25/64" | 5/8" | 0.09" | 000000000 | 0000 |
3/8"-24 | 1/2" | 25/64" | 41/64" | 0.13" | 000000000 | 0000 |
3/8"-24 | 1/2" | 27/64" | 45/64" | 0.13" | 000000000 | 0000 |
7/16"-14 | 1/2" | 7/16" | 45/64" | 0.11" | 000000000 | 0000 |
7/16"-20 | 1/2" | 23/64" | 19/32" | 0.13" | 000000000 | 0000 |
7/16"-20 | 1/2" | 7/16" | 45/64" | 0.11" | 000000000 | 0000 |
7/16"-20 | 9/16" | 1/2" | 53/64" | 0.13" | 000000000 | 0000 |
7/16"-20 | 5/8" | 1/2" | 53/64" | 0.13" | 000000000 | 0000 |
1/2"-13 | 9/16" | 33/64" | 53/64" | 0.13" | 000000000 | 0000 |
1/2"-20 | 9/16" | 33/64" | 53/64" | 0.13" | 000000000 | 0000 |
1/2"-20 | 5/8" | 17/32" | 7/8" | 0.13" | 000000000 | 0000 |
1/2"-20 | 11/16" | 41/64" | 7/8" | 0.19" | 000000000 | 0000 |
9/16"-12 | 11/16" | 5/8" | 31/32" | 0.13" | 000000000 | 00000 |
9/16"-18 | 11/16" | 5/8" | 31/32" | 0.13" | 000000000 | 00000 |
5/8"-18 | 13/16" | 45/64" | 1 1/4" | 0.13" | 000000000 | 00000 |
Thread | Flange | ||||||
---|---|---|---|---|---|---|---|
Size | Pitch, mm | Wd., mm | Ht., mm | Dia. | Thick., mm | Each | |
Black-Oxide Steel | |||||||
M6 | 1 | 8 | 6.1 | 10.5 | 1.6 | 000000000 | 00000 |
M7 | 1 | 9 | 7 | 12 | 1.6 | 000000000 | 0000 |
M8 | 1 | 10 | 8.1 | 15.9 | 1.6 | 000000000 | 0000 |
M8 | 1.25 | 10 | 8.1 | 13.6 | 1.6 | 000000000 | 0000 |
M9 | 1 | 11 | 9.5 | 15.6 | 1.6 | 000000000 | 0000 |
M9 | 1 | 13 | 8.4 | 18.2 | 1.6 | 000000000 | 0000 |
M9 | 1.25 | 11 | 8 | 15.6 | 1.6 | 000000000 | 0000 |
M10 | 1 | 12 | 10.2 | 14 | 3.2 | 000000000 | 0000 |
M10 | 1 | 12 | 10.2 | 17.8 | 3.2 | 000000000 | 0000 |
M10 | 1.25 | 12 | 8.1 | 15 | 1.6 | 000000000 | 0000 |
M10 | 1.25 | 12 | 10.2 | 15.9 | 3.2 | 000000000 | 0000 |
M10 | 1.25 | 12 | 10.2 | 17.8 | 3.2 | 000000000 | 0000 |
M10 | 1.25 | 16 | 11.4 | 20.7 | 3.2 | 000000000 | 0000 |
M10 | 1.5 | 12 | 10.2 | 17.8 | 3.2 | 000000000 | 0000 |
M11 | 1.25 | 13 | 11 | 17.8 | 3.2 | 000000000 | 0000 |
M11 | 1.25 | 14 | 13 | 20.9 | 3.2 | 000000000 | 0000 |
M12 | 1 | 14 | 12.8 | 19.1 | 3.2 | 000000000 | 0000 |
M12 | 1.25 | 14 | 12.8 | 19.1 | 3.2 | 000000000 | 0000 |
M12 | 1.25 | 14 | 12.8 | 20.9 | 3.2 | 000000000 | 0000 |
M12 | 1.25 | 16 | 9.5 | 20.7 | 3.2 | 000000000 | 0000 |
M12 | 1.25 | 16 | 10.8 | 23.5 | 3.2 | 000000000 | 0000 |
M12 | 1.25 | 16 | 13.5 | 22.2 | 4.8 | 000000000 | 0000 |
M12 | 1.75 | 14 | 12.8 | 20.9 | 3.2 | 000000000 | 0000 |
Stainless Steel High-Torque 12-Point Flange Nuts

These flange nuts have excellent resistance to chemicals and salt water. With more points of contact than a hex, they allow you to get a better grip for more driver torque. The flange distributes pressure where the nut meets the material surface, eliminating the need for a separate washer. Height includes the flange.
For technical drawings and 3-D models, click on a part number.
Flange | ||||||
---|---|---|---|---|---|---|
Thread Size | Wd. | Ht. | Dia. | Thick. | Each | |
A286 Stainless Steel | ||||||
1/4"-20 | 5/16" | 19/64" | 7/16" | 0.06" | 000000000 | 00000 |
1/4"-28 | 5/16" | 19/64" | 7/16" | 0.06" | 000000000 | 0000 |
5/16"-18 | 3/8" | 11/32" | 17/32" | 0.08" | 000000000 | 0000 |
5/16"-24 | 3/8" | 11/32" | 17/32" | 0.08" | 000000000 | 0000 |
3/8"-16 | 7/16" | 25/64" | 5/8" | 0.09" | 000000000 | 0000 |
3/8"-24 | 7/16" | 25/64" | 5/8" | 0.09" | 000000000 | 0000 |
7/16"-14 | 1/2" | 7/16" | 45/64" | 0.11" | 000000000 | 0000 |
7/16"-20 | 1/2" | 7/16" | 45/64" | 0.11" | 000000000 | 0000 |
1/2"-13 | 9/16" | 33/64" | 53/64" | 0.13" | 000000000 | 0000 |
1/2"-20 | 9/16" | 33/64" | 53/64" | 0.13" | 000000000 | 0000 |
9/16"-18 | 11/16" | 5/8" | 31/32" | 0.13" | 000000000 | 0000 |
Thread | Flange | ||||||
---|---|---|---|---|---|---|---|
Size | Pitch, mm | Wd., mm | Ht., mm | Dia. | Thick., mm | Each | |
A286 Stainless Steel | |||||||
M6 | 1 | 8 | 6.1 | 10.5 | 1.6 | 000000000 | 00000 |
M7 | 1 | 9 | 7 | 12 | 1.6 | 000000000 | 0000 |
M8 | 1 | 10 | 8.1 | 15.9 | 1.6 | 000000000 | 0000 |
M8 | 1.25 | 10 | 8.1 | 13.6 | 1.6 | 000000000 | 0000 |
M9 | 1 | 11 | 9.5 | 15.6 | 1.6 | 000000000 | 0000 |
M10 | 1 | 12 | 10.2 | 17.8 | 3.2 | 000000000 | 0000 |
M10 | 1.25 | 12 | 10.2 | 17.8 | 3.2 | 000000000 | 0000 |
M10 | 1.5 | 12 | 10.2 | 17.8 | 3.2 | 000000000 | 0000 |
M11 | 1.25 | 13 | 11 | 17.8 | 3.2 | 000000000 | 0000 |
M11 | 1.25 | 14 | 13 | 20.9 | 3.2 | 000000000 | 0000 |
M12 | 1 | 14 | 12.8 | 19.1 | 3.2 | 000000000 | 0000 |
M12 | 1.25 | 14 | 12.8 | 19.1 | 3.2 | 000000000 | 0000 |
M12 | 1.25 | 14 | 12.8 | 20.9 | 3.2 | 000000000 | 0000 |
M12 | 1.75 | 14 | 12.8 | 20.9 | 3.2 | 000000000 | 0000 |