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.
For technical drawings and 3-D models, click on a part number.
Thread | ||||||
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Size | Dp. | Wd. | Ht. | Pkg. Qty. | Pkg. | |
18-8 Stainless Steel | ||||||
3/4"-10 | 3/4" | 1 1/16" | 1 5/32" | 1 | 000000000 | 000000 |
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 | ||||||
3/4"-10 | 3/4" | 1 1/16" | 1 5/32" | 1 | 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.
For technical drawings and 3-D models, click on a part number.
Medium-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. Made from Grade 5 steel, they're suitable for fastening most machinery and equipment.
Zinc-plated steel cap nuts resist corrosion in wet environments.
For technical drawings and 3-D models, click on a part number.
Thread | ||||||
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Size | Dp. | Wd. | Ht. | Pkg. Qty. | Pkg. | |
Zinc-Plated Steel—Grade 5 | ||||||
3/4"-10 | 3/4" | 1 1/16" | 1 5/32" | 1 | 000000000 | 00000 |
High-Strength Steel Cap Nuts—Grade 8
Also known 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.
Zinc-plated steel cap nuts resist corrosion in wet environments.
For technical drawings and 3-D models, click on a part number.
Thread | ||||||
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Size | Dp. | Wd. | Ht. | Pkg. Qty. | Pkg. | |
Zinc-Plated Steel—Grade 8 | ||||||
3/4"-10 | 3/4" | 1 1/16" | 1 5/32" | 1 | 000000000 | 00000 |
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.
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 | ||||||
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Size | Dp. | Wd. | Ht. | Pkg. Qty. | Pkg. | |
18-8 Stainless Steel | ||||||
3/4"-10 | 1/2" | 1 1/16" | 7/8" | 1 | 000000000 | 000000 |
Steel High Heavy-Hex Cap Nuts
These cap nuts are about 20% wider and taller than standard cap nuts and have high sides to provide a larger area for your wrench to grip. Also known as acorn nuts, a smooth rounded head covers and protects threads while providing a finished appearance. They have a black-oxide finish that provides mild corrosion resistance in dry environments.
For technical drawings and 3-D models, click on a part number.
Thread | |||||
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Size | Dp. | Wd. | Ht. | Each | |
Black-Oxide Steel | |||||
3/4"-10 | 29/32" | 1 1/4" | 1 3/8" | 000000000 | 000000 |
Stainless Steel High Heavy-Hex Cap Nuts
These cap nuts have good chemical resistance. They're about 20% wider and taller than standard cap nuts and have high sides to provide a larger area for your wrench to grip. Also known as acorn nuts, a smooth rounded head 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. | Each | |
18-8 Stainless Steel | |||||
3/4"-10 | 29/32" | 1 1/4" | 1 3/8" | 000000000 | 000000 |
Sanitary Thread Caps
Cover exposed threads with these caps to help prevent bacteria growth in food processing areas and other sanitary environments. Instead of a cap without a seal, these have a silicone seal that blocks out water and contaminants. The rest is made of 304 stainless steel, which resists corrosion, even from frequent washdowns with harsh cleaners. Their smooth finish and rounded edges leave no crevices for water and bacteria to settle in, reducing the chance that a foodborne illness survives and spreads. Tighten these caps by their wrench flats to avoid scratching them. They’re up to four times as tall as our largest cap nuts, so they protect more threads.
If the seal falls off, it has metal and chemical additives so it can be picked up on metal detectors or X-ray machines—a requirement of Hazard Analysis and Critical Control Point (HACCP) programs. It’s FDA compliant for direct contact with food.
For technical drawings and 3-D models, click on a part number.
Thread | ||||||||
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Size | Dp. | Dia. | Wd. | Ht. | Performance Properties | Specifications Met | Each | |
304 Stainless Steel—Silicone Rubber Seal | ||||||||
3/4"-10 | 29/32" | 1 3/16" | 1" | 3 15/16" | Metal Detectable, X-Ray Detectable | FDA Compliant 21 CFR 177.2600 | 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 | ||||||
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Size | Dp. | Wd. | Ht. | Pkg. Qty. | Pkg. | |
18-8 Stainless Steel | ||||||
3/4"-10 | 11/16" | 1 1/16" | 1 3/16" | 1 | 000000000 | 00000 |
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.
For technical drawings and 3-D models, click on a part number.
Thread | Thread Locker | |||||||
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Size | Dp. | Wd. | Ht. | Type | Max. Temp., °F | Pkg. Qty. | Pkg. | |
18-8 Stainless Steel | ||||||||
3/4"-10 | 3/4" | 1 1/16" | 1 5/32" | Nylon Patch | 250° | 1 | 000000000 | 000000 |