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About Nuts, Materials, and Finishes
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Left-Hand Threaded Medium-Strength
Steel Thin Hex Nuts
These nuts tighten when turned to the left; once fastened, they resist loosening from counterclockwise motion. Also known as jam nuts, they are about half the height of standard hex nuts. Use them in low-clearance applications or jam one against another nut to hold it in place. They're suitable for fastening most machinery and equipment when used in conjunction with a standard hex nut. A zinc plating provides corrosion resistance in wet environments.
For technical drawings and 3-D models, click on a part number.
| Thread Size | Wd. | Ht. | Pkg. Qty. | Pkg. | |
Zinc-Plated Steel—Grade 5 | |||||
|---|---|---|---|---|---|
| 1/4"-20 | 7/16" | 5/32" | 100 | 000000000 | 000000 |
| 1/4"-28 | 7/16" | 5/32" | 100 | 000000000 | 00000 |
| 5/16"-18 | 1/2" | 3/16" | 50 | 000000000 | 00000 |
| 5/16"-24 | 1/2" | 3/16" | 50 | 000000000 | 0000 |
| 3/8"-16 | 9/16" | 7/32" | 50 | 000000000 | 00000 |
| 3/8"-24 | 9/16" | 7/32" | 50 | 000000000 | 00000 |
| 7/16"-14 | 11/16" | 1/4" | 50 | 000000000 | 00000 |
| 7/16"-20 | 11/16" | 1/4" | 25 | 000000000 | 0000 |
| 1/2"-13 | 3/4" | 5/16" | 25 | 000000000 | 00000 |
| 1/2"-20 | 3/4" | 5/16" | 25 | 000000000 | 00000 |
| 9/16"-18 | 7/8" | 5/16" | 10 | 000000000 | 00000 |
| 5/8"-11 | 15/16" | 3/8" | 10 | 000000000 | 0000 |
| 5/8"-18 | 15/16" | 3/8" | 10 | 000000000 | 0000 |
| 3/4"-10 | 1 1/8" | 27/64" | 10 | 000000000 | 00000 |
| 3/4"-16 | 1 1/8" | 27/64" | 10 | 000000000 | 00000 |
| 7/8"-9 | 1 5/16" | 31/64" | 5 | 000000000 | 00000 |
| 7/8"-14 | 1 5/16" | 31/64" | 5 | 000000000 | 00000 |
| 1"-8 | 1 1/2" | 35/64" | 1 | 000000000 | 0000 |
| 1"-14 | 1 1/2" | 35/64" | 1 | 000000000 | 0000 |
| 1 1/8"-7 | 1 11/16" | 39/64" | 1 | 000000000 | 00000 |
| 1 1/8"-12 | 1 11/16" | 39/64" | 1 | 000000000 | 0000 |
| 1 1/4"-7 | 1 7/8" | 23/32" | 1 | 000000000 | 0000 |
| 1 1/4"-12 | 1 7/8" | 23/32" | 1 | 000000000 | 0000 |
| 1 1/2"-6 | 2 1/4" | 27/32" | 1 | 000000000 | 00000 |
| 1 1/2"-12 | 2 1/4" | 27/32" | 1 | 000000000 | 00000 |
| 2"-12 | 3" | 1 3/32" | 1 | 000000000 | 00000 |
Left-Hand Threaded Low-Strength Steel Thin Hex Nuts
These nuts tighten when turned to the left; once fastened, they resist loosening from counterclockwise motion. Also known as jam nuts, they are about half the height of standard hex nuts. Use them in low-clearance applications or jam one against another nut to hold it in place. About half the strength of medium-strength steel thin nuts, use them for light duty fastening applications, such as securing access panels.
For technical drawings and 3-D models, click on a part number.
| Thread Size | Wd. | Ht. | Pkg. Qty. | Pkg. | |
Steel—Grade 2 | |||||
|---|---|---|---|---|---|
| 1/4"-20 | 7/16" | 5/32" | 50 | 000000000 | 00000 |
| 1/4"-28 | 7/16" | 5/32" | 100 | 000000000 | 0000 |
| 5/16"-18 | 1/2" | 3/16" | 50 | 000000000 | 0000 |
| 5/16"-24 | 1/2" | 3/16" | 100 | 000000000 | 00000 |
| 3/8"-16 | 9/16" | 7/32" | 25 | 000000000 | 0000 |
| 3/8"-24 | 9/16" | 7/32" | 50 | 000000000 | 00000 |
| 1/2"-13 | 3/4" | 5/16" | 25 | 000000000 | 00000 |
| 1/2"-20 | 3/4" | 5/16" | 25 | 000000000 | 00000 |
| 5/8"-11 | 15/16" | 3/8" | 10 | 000000000 | 0000 |
| 5/8"-18 | 15/16" | 3/8" | 10 | 000000000 | 0000 |
| 3/4"-10 | 1 1/8" | 27/64" | 10 | 000000000 | 0000 |
| 3/4"-16 | 1 1/8" | 27/64" | 10 | 000000000 | 00000 |
| 1"-8 | 1 1/2" | 35/64" | 5 | 000000000 | 00000 |
| 1"-14 | 1 1/2" | 35/64" | 5 | 000000000 | 00000 |
| 1 1/4"-12 | 1 7/8" | 23/32" | 1 | 000000000 | 0000 |
Left-Hand Threaded 18-8 Stainless Steel Thin Hex Nuts
These nuts tighten when turned to the left; once fastened, they resist loosening from counterclockwise motion. They have good chemical resistance and may be mildly magnetic. Also known as jam nuts, they are about half the height of standard hex nuts. Use them in low-clearance applications or jam one against another nut to hold it in place.
For technical drawings and 3-D models, click on a part number.
| Thread Size | Wd. | Ht. | Pkg. Qty. | Pkg. | |
18-8 Stainless Steel | |||||
|---|---|---|---|---|---|
| 1/4"-20 | 7/16" | 5/32" | 5 | 000000000 | 00000 |
| 1/4"-28 | 7/16" | 5/32" | 5 | 000000000 | 0000 |
| 5/16"-18 | 1/2" | 3/16" | 5 | 000000000 | 0000 |
| 5/16"-24 | 1/2" | 3/16" | 5 | 000000000 | 0000 |
| 3/8"-16 | 9/16" | 7/32" | 5 | 000000000 | 0000 |
| 3/8"-24 | 9/16" | 7/32" | 5 | 000000000 | 0000 |
| 1/2"-13 | 3/4" | 5/16" | 5 | 000000000 | 0000 |
| 1/2"-20 | 3/4" | 5/16" | 5 | 000000000 | 0000 |
| 5/8"-11 | 15/16" | 3/8" | 1 | 000000000 | 0000 |
| 5/8"-18 | 15/16" | 3/8" | 1 | 000000000 | 0000 |
| 3/4"-10 | 1 1/8" | 27/64" | 1 | 000000000 | 00000 |
| 3/4"-16 | 1 1/8" | 27/64" | 1 | 000000000 | 00000 |