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Stainless Steel Thin Heavy Hex Nuts


Made from 18-8 stainless steel, these nuts have good chemical resistance and may be mildly magnetic. Also known as heavy jam nuts, they are about half the height and 10% wider than standard hex nuts. Use them in low-clearance applications or jam one against another heavy hex 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 | 1/2" | 11/64" | 25 | 000000000 | 00000 |
5/16"-18 | 9/16" | 13/64" | 20 | 000000000 | 0000 |
3/8"-16 | 11/16" | 15/64" | 10 | 000000000 | 0000 |
1/2"-13 | 7/8" | 19/64" | 10 | 000000000 | 00000 |
5/8"-11 | 1 1/16" | 23/64" | 5 | 000000000 | 00000 |
3/4"-10 | 1 1/4" | 27/64" | 1 | 000000000 | 0000 |
7/8"-9 | 1 7/16" | 31/64" | 1 | 000000000 | 0000 |
1"-8 | 1 5/8" | 35/64" | 1 | 000000000 | 0000 |
1 1/8"-7 | 1 13/16" | 39/64" | 1 | 000000000 | 0000 |
1 1/4"-7 | 2" | 23/32" | 1 | 000000000 | 0000 |
1 1/2"-6 | 2 3/8" | 27/32" | 1 | 000000000 | 00000 |
1 3/4"-5 | 2 3/4" | 31/32" | 1 | 000000000 | 00000 |
18-8 Stainless Steel Thin Heavy Nylon-Insert Locknuts

These locknuts have good chemical resistance and may be mildly magnetic. About half the height and 10% wider than standard nylon-insert locknuts, these locknuts are considered thin heavy locknuts. Use them in low-clearance applications or jam one against a heavy hex nut to hold it in place. The nylon insert grips the bolt to resist loosening without damaging threads. They're reusable, but their holding power lessens with each use.
For technical drawings and 3-D models, click on a part number.
Thread Size | Wd. | Ht. | Insert Max. Temp., °F | Pkg. Qty. | Pkg. | |
18-8 Stainless Steel | ||||||
---|---|---|---|---|---|---|
1/4"-20 | 1/2" | 9/32" | 250° | 25 | 000000000 | 000000 |
5/16"-18 | 9/16" | 5/16" | 250° | 20 | 000000000 | 00000 |
3/8"-16 | 11/16" | 13/32" | 250° | 10 | 000000000 | 00000 |
1/2"-13 | 7/8" | 17/32" | 250° | 1 | 000000000 | 0000 |
5/8"-11 | 1 1/16" | 5/8" | 250° | 1 | 000000000 | 0000 |
3/4"-10 | 1 1/4" | 45/64" | 250° | 1 | 000000000 | 00000 |
1"-8 | 1 5/8" | 59/64" | 250° | 1 | 000000000 | 00000 |
Super-Corrosion-Resistant 316 Stainless
Steel Thin Heavy Nylon-Insert Locknuts

These locknuts have excellent resistance to chemicals and salt water. They’re known as thin heavy locknuts because they’re about half the height and 10% wider than standard nylon-insert locknuts. Use them in low-clearance applications or jam one against a heavy hex nut to hold it in place. The nylon insert grips the bolt to resist loosening without damaging threads. They're reusable, but their holding power lessens with each use. They may be mildly magnetic.
For technical drawings and 3-D models, click on a part number.