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About Nuts, Materials, and Finishes
More
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 | ||||||
|---|---|---|---|---|---|---|
| Size | Dp. | Wd. | Ht. | Pkg. Qty. | Pkg. | |
18-8 Stainless Steel | ||||||
| 1"-8 | 1" | 1 7/16" | 1 35/64" | 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 | ||||||
|---|---|---|---|---|---|---|
| Size | Dp. | Wd. | Ht. | Pkg. Qty. | Pkg. | |
316 Stainless Steel | ||||||
| 1"-8 | 1" | 1 7/16" | 1 35/64" | 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.
For technical drawings and 3-D models, click on a part number.
Thread | ||||||
|---|---|---|---|---|---|---|
| Size | Dp. | Wd. | Ht. | Pkg. Qty. | Pkg. | |
Zinc-Plated Steel | ||||||
| 1"-8 | 1" | 1 7/16" | 1 35/64" | 1 | 000000000 | 00000 |
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 | ||||||
|---|---|---|---|---|---|---|
| Size | Dp. | Wd. | Ht. | Pkg. Qty. | Pkg. | |
Zinc-Plated Steel—Grade 5 | ||||||
| 1"-8 | 1" | 1 7/16" | 1 35/64" | 1 | 000000000 | 000000 |
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 | ||||||
|---|---|---|---|---|---|---|
| Size | Dp. | Wd. | Ht. | Pkg. Qty. | Pkg. | |
Zinc-Plated Steel—Grade 8 | ||||||
| 1"-8 | 1" | 1 7/16" | 1 35/64" | 1 | 000000000 | 000000 |
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.
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 | ||||||||
Inch | ||||||||
| 1"-8 | 29/32" | 1 3/8" | 1 1/4" | 3 15/16" | Metal Detectable, X-Ray Detectable | FDA Compliant 21 CFR 177.2600 | 000000000 | 000000 |