About Nuts, Materials, and Finishes
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18-8 Stainless Steel Cap Nuts
These cap nuts have good chemical resistance and may be mildly magnetic. Also known as acorn nuts, they have a smooth rounded head that covers and protects threads while providing a finished appearance.
Black-oxide stainless steel cap nuts have a dark surface color.
For technical drawings and 3-D models, click on a part number.
Super-Corrosion-Resistant 316 Stainless Steel Cap Nuts
These cap nuts have excellent resistance to chemicals and salt water. Also known as acorn nuts, they 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 | ||||||
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Size | Dp. | Wd. | Ht. | Pkg. Qty. | Pkg. | |
316 Stainless Steel | ||||||
6-32 | 5/32" | 5/16" | 11/32" | 5 | 000000000 | 000000 |
Low-Strength Steel Cap Nuts
Also known 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.
Nickel-plated steel cap nuts have excellent resistance to chemicals and salt water and have a decorative metallic finish.
Black corrosion-resistant-coated steel cap nuts have excellent resistance to chemicals and salt water.
For technical drawings and 3-D models, click on a part number.
Plastic Cap Nuts
These nylon 6/6 cap nuts are chemical resistant, nonconductive, and lightweight. Also known as acorn nuts, they 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.
Brass Cap Nuts
These cap nuts are corrosion resistant in wet environments, electrically conductive, and nonmagnetic. Also known as acorn nuts, they have a smooth rounded head that covers and protects threads while providing a finished appearance. All 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.
Aluminum Cap Nuts
One-third the weight of steel, aluminum cap nuts resist corrosion in wet environments and are nonmagnetic. Also known acorn nuts, they 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 | ||||||
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Size | Dp. | Wd. | Ht. | Pkg. Qty. | Pkg. | |
2011 Aluminum | ||||||
6-32 | 3/16" | 5/16" | 19/64" | 10 | 000000000 | 000000 |
Low-Profile Cap Nuts
About 20% shorter than standard cap nuts, use these in low-profile applications. Also known as acorn nuts, they have a smooth rounded head that covers and protects threads while providing a finished appearance. Made from 18-8 stainless steel, they have good chemical resistance.
For technical drawings and 3-D models, click on a part number.
Thread | ||||||
---|---|---|---|---|---|---|
Size | Dp. | Wd. | Ht. | Pkg. Qty. | Pkg. | |
18-8 Stainless Steel | ||||||
6-32 | 3/16" | 5/16" | 9/32" | 10 | 000000000 | 00000 |
18-8 Stainless Steel Distorted-Thread Cap Locknuts
An irregularly shaped thread grips the bolt for a stronger hold than nylon-insert cap locknuts. Also known as acorn locknuts, a smooth rounded head that covers and protects threads while providing a finished appearance. Made from 18-8 stainless steel, they have good chemical resistance.
For technical drawings and 3-D models, click on a part number.
Thread | ||||||
---|---|---|---|---|---|---|
Size | Dp. | Wd. | Ht. | Pkg. Qty. | Pkg. | |
18-8 Stainless Steel | ||||||
6-32 | 5/32" | 5/16" | 11/32" | 10 | 000000000 | 000000 |
Low-Strength Steel Distorted-Thread Cap Locknuts
For a stronger hold than nylon-insert cap locknuts, these locknuts have an irregularly shaped thread that grips the bolt and resists loosening from vibration. They are made of Grade 2 steel, so they are about half the strength of medium-strength steel nuts and are often used in light duty applications, such as securing access panels. A zinc-plated finish resists corrosion in wet environments. Also known as acorn locknuts, their smooth rounded head gives a finished appearance while covering and protecting threads.
For technical drawings and 3-D models, click on a part number.
Thread | ||||||
---|---|---|---|---|---|---|
Size | Dp. | Wd. | Ht. | Pkg. Qty. | Pkg. | |
Zinc-Plated Steel—Grade 2 | ||||||
6-32 | 5/32" | 5/16" | 11/32" | 50 | 000000000 | 000000 |
Open-End Cap Nuts
An open dome allows these cap nuts to be used on bolts or rods of any length. Their domed shape provides a finished appearance. Made from 18-8 stainless steel, they have good chemical resistance.
For technical drawings and 3-D models, click on a part number.
Thread | |||||
---|---|---|---|---|---|
Size | Dp. | Wd. | Ht. | Each | |
18-8 Stainless Steel | |||||
6-32 | 1/4" | 5/16" | 1/4" | 000000000 | 00000 |
Cap Nut Assortments
Cover and protect threads while providing a finished appearance.
Nickel-plated steel cap nuts have excellent resistance to chemicals and salt water and have a decorative metallic finish.
18-8 stainless steel cap nuts are chemical resistant and may be mildly magnetic.