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 | ||||||
---|---|---|---|---|---|---|
Size | Dp. | Wd. | Ht. | Pkg. Qty. | Pkg. | |
316 Stainless Steel | ||||||
10-32 | 3/16" | 3/8" | 13/32" | 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 | ||||||
---|---|---|---|---|---|---|
Size | Dp. | Wd. | Ht. | Pkg. Qty. | Pkg. | |
2011 Aluminum | ||||||
10-32 | 5/32" | 3/8" | 11/32" | 25 | 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 | ||||||
10-32 | 7/32" | 3/8" | 11/32" | 10 | 000000000 | 000000 |
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 | ||||||
10-32 | 3/16" | 3/8" | 13/32" | 10 | 000000000 | 000000 |
Nylon-Insert Cap Locknuts
The nylon cap covers and grips the threads to resist loosening. They’re reusable, but their holding power lessens with each use. Nuts are steel with a nylon 6/6 cap and insert.
Zinc-plated nuts have a layer of zinc that protects the steel from rust in wet environments.
For technical drawings and 3-D models, click on a part number.
18-8 Stainless Steel Vibration-Resistant Cap Locknuts
A nylon patch bonded to the threads of these reusable nuts adds friction to prevent loosening under vibration. However, the patch's strength lessens with each use. These nuts have good chemical resistance and may be mildly magnetic because they’re made of 18-8 stainless steel. 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.
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 | ||||||
10-32 | 3/16" | 3/8" | 13/32" | 25 | 000000000 | 000000 |
Super-Corrosion-Resistant 316 Stainless Steel Vibration-Resistant Cap Locknuts
With a nylon patch bonded to their threads for added friction, these nuts resist coming loose from vibration. They’re reusable, but the patch’s strength decreases with each use. Made of 316 stainless steel, they have excellent resistance to chemicals and salt water. Also known as acorn nuts, these cap 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 | Thread Locker | |||||||
---|---|---|---|---|---|---|---|---|
Size | Dp. | Wd. | Ht. | Type | Max. Temp., °F | Pkg. Qty. | Pkg. | |
316 Stainless Steel | ||||||||
10-32 | 3/16" | 3/8" | 13/32" | Nylon Patch | 250° | 5 | 000000000 | 000000 |
Super-Corrosion-Resistant 316 Stainless Steel Distorted-Thread Cap Locknuts
With an irregularly shaped thread, these locknuts grip the bolt for a stronger hold than nylon-insert cap nuts and resist loosening from vibration. They’re made from 316 stainless steel, so they 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.
For technical drawings and 3-D models, click on a part number.
Thread | ||||||
---|---|---|---|---|---|---|
Size | Dp. | Wd. | Ht. | Pkg. Qty. | Pkg. | |
316 Stainless Steel | ||||||
10-32 | 3/16" | 3/8" | 13/32" | 1 | 000000000 | 00000 |
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 | |||||
10-32 | 5/16" | 7/16" | 5/16" | 000000000 | 00000 |
Sealing Cap Nuts
A silicone seal prevents leaks and seals contaminants. Also known as acorn nuts, these cap nuts have a smooth rounded head that covers and protects threads while creating a finished appearance. They’re stainless steel, so they have good chemical resistance and may be mildly magnetic.
For technical drawings and 3-D models, click on a part number.
Thread | |||||||
---|---|---|---|---|---|---|---|
Size | Dp. | Wd. | Ht. | Max. Pressure | Seal Temp. Range, °F | Each | |
18-8 Stainless Steel | |||||||
10-32 | 3/16" | 3/8" | 25/64" | 1,200 psi | -80° to 400° | 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.