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Metric 18-8 Stainless Steel Cap Nuts

Made from 18-8 stainless steel, these cap nuts have good chemical resistance and may be mildly magnetic. Also known as acorn nuts, these nuts have a smooth rounded head that covers and protects threads while providing a finished appearance.
For technical drawings and 3-D models, click on a part number.
Thread | ||||||||
|---|---|---|---|---|---|---|---|---|
| Size | Pitch, mm | Dp., mm | Wd., mm | Ht., mm | Specifications Met | Pkg. Qty. | Pkg. | |
18-8 Stainless Steel | ||||||||
| M3 | 0.5 | 3.8 | 5.5 | 6 | DIN 1587 | 10 | 000000000 | 00000 |
| M4 | 0.7 | 5.7 | 7 | 8 | DIN 1587 | 25 | 000000000 | 0000 |
| M5 | 0.8 | 7.2 | 8 | 10 | DIN 1587 | 25 | 000000000 | 0000 |
| M6 | 1 | 7.7 | 10 | 12 | DIN 1587 | 20 | 000000000 | 0000 |
| M8 | 1.25 | 10.7 | 13 | 15 | DIN 1587 | 10 | 000000000 | 0000 |
| M10 | 1.5 | 12.7 | 17 | 18 | DIN 1587 | 5 | 000000000 | 0000 |
| M12 | 1.75 | 15.7 | 19 | 22 | DIN 1587 | 5 | 000000000 | 0000 |
| M14 | 2 | 17.7 | 22 | 25 | DIN 1587 | 1 | 000000000 | 0000 |
| M16 | 2 | 20.6 | 24 | 28 | DIN 1587 | 1 | 000000000 | 0000 |
| M18 | 2.5 | 24.6 | 27 | 32 | DIN 1587 | 1 | 000000000 | 0000 |
| M20 | 2.5 | 25.6 | 30 | 34 | DIN 1587 | 1 | 000000000 | 0000 |
| M22 | 2.5 | 28.6 | 34 | 39 | DIN 1587 | 1 | 000000000 | 0000 |
| M24 | 3 | 30.5 | 36 | 42 | DIN 1587 | 1 | 000000000 | 0000 |
Metric Super-Corrosion-Resistant 316 Stainless Steel Cap Nuts

Made from 316 stainless steel, these nuts have excellent resistance to chemicals and salt water. Also known as acorn nuts, these nuts have a smooth rounded head that covers and protects threads while providing a finished appearance. They may be mildly magnetic.
For technical drawings and 3-D models, click on a part number.
Thread | ||||||||
|---|---|---|---|---|---|---|---|---|
| Size | Pitch, mm | Dp., mm | Wd., mm | Ht., mm | Specifications Met | Pkg. Qty. | Pkg. | |
316 Stainless Steel | ||||||||
| M3 | 0.5 | 3.8 | 5.5 | 6 | DIN 1587 | 25 | 000000000 | 00000 |
| M4 | 0.7 | 5.5 | 7 | 8 | DIN 1587 | 25 | 000000000 | 0000 |
| M5 | 0.8 | 7.5 | 8 | 10 | DIN 1587 | 25 | 000000000 | 0000 |
| M6 | 1 | 8 | 10 | 12 | DIN 1587 | 25 | 000000000 | 00000 |
| M8 | 1.25 | 11 | 13 | 15 | DIN 1587 | 10 | 000000000 | 0000 |
| M10 | 1.5 | 13 | 17 | 18 | DIN 1587 | 10 | 000000000 | 00000 |
| M12 | 1.75 | 16 | 19 | 22 | DIN 1587 | 5 | 000000000 | 00000 |
| M14 | 2 | 18 | 22 | 25 | DIN 1587 | 1 | 000000000 | 0000 |
| M16 | 2 | 21 | 24 | 28 | DIN 1587 | 1 | 000000000 | 0000 |
| M20 | 2.5 | 26 | 30 | 34 | DIN 1587 | 1 | 000000000 | 00000 |
| M22 | 2.5 | 29 | 34 | 39 | DIN 1587 | 1 | 000000000 | 00000 |
| M24 | 3 | 31 | 36 | 42 | DIN 1587 | 1 | 000000000 | 00000 |
Metric Low-Strength Steel Cap Nuts

Often referred to as acorn nuts, these nuts have a smooth rounded head that covers and protects threads while providing a finished appearance. About half the strength of medium-strength steel cap nuts, use them in light duty fastening applications, such as securing access panels.
Zinc-plated steel cap nuts resist corrosion in wet environments.
Chrome-plated steel cap nuts have excellent resistance to chemicals and salt water and have a decorative metallic finish.
For technical drawings and 3-D models, click on a part number.
Thread | ||||||||
|---|---|---|---|---|---|---|---|---|
| Size | Pitch, mm | Dp., mm | Wd., mm | Ht., mm | Specifications Met | Pkg. Qty. | Pkg. | |
Zinc-Plated Steel | ||||||||
| M4 | 0.7 | 5.3 | 7 | 8 | DIN 1587 | 50 | 000000000 | 000000 |
| M5 | 0.8 | 7.2 | 8 | 10 | DIN 1587 | 50 | 000000000 | 00000 |
| M6 | 1 | 7.7 | 10 | 12 | DIN 1587 | 50 | 000000000 | 00000 |
| M8 | 1.25 | 10.7 | 13 | 15 | DIN 1587 | 25 | 000000000 | 00000 |
| M10 | 1.5 | 12.7 | 17 | 18 | DIN 1587 | 10 | 000000000 | 0000 |
| M12 | 1.75 | 15.7 | 19 | 22 | DIN 1587 | 10 | 000000000 | 00000 |
Chrome-Plated Steel | ||||||||
| M4 | 0.7 | 3.9 | 7 | 8 | DIN 1587 | 5 | 000000000 | 00000 |
| M5 | 0.8 | 5.6 | 8 | 10 | DIN 1587 | 5 | 000000000 | 00000 |
| M6 | 1 | 5.7 | 10 | 12 | DIN 1587 | 5 | 000000000 | 00000 |
| M8 | 1.25 | 8.2 | 13 | 15 | DIN 1587 | 1 | 000000000 | 0000 |
| M10 | 1.5 | 9.7 | 17 | 18 | DIN 1587 | 1 | 000000000 | 0000 |
| M12 | 1.75 | 12.2 | 19 | 22 | DIN 1587 | 1 | 000000000 | 0000 |
Metric High-Strength Steel Cap Nuts—Class 10

Often referred to as acorn nuts, these nuts have a smooth rounded head that covers and protects threads while providing a finished appearance. They're about 25% stronger than medium-strength steel cap nuts and comparable in strength to Class 10.9 bolts. A zinc plating provides corrosion resistance in wet environments.
For technical drawings and 3-D models, click on a part number.


























