Cap Nut Profile Cap Nut Profile |
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| Extra-Wide High | High |
Material Material |
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Drive Style Drive Style |
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| External Hex | External Square |
DFARS (Defense Acquisition Regulations Supplement) DFARS (Defense AcquisitionRegulations Supplement) |
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Environment Environment |
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Performance Properties Performance Properties |
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About Nuts, Materials, and Finishes
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Stainless Steel Extra-Wide High-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.
Steel Extra-Wide High-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.
High-Profile Cap Nuts
These cap nuts offer at least three-times the thread depth of standard acorn nuts and are about twice the height. 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.
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 | Pitch | Dp. | Dia. | Wd. | Ht. | Performance Properties | Specifications Met | Each | |
304 Stainless Steel—Silicone Rubber Seal | |||||||||
Inch | |||||||||
| 5/8"-11 | __ | 29/32" | 1" | 7/8" | 3 15/16" | Metal Detectable, X-Ray Detectable | FDA Compliant 21 CFR 177.2600 | 000000000 | 000000 |
| 3/4"-10 | __ | 29/32" | 1 3/16" | 1" | 3 15/16" | Metal Detectable, X-Ray Detectable | FDA Compliant 21 CFR 177.2600 | 000000000 | 00000 |
| 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 | 00000 |
Metric | |||||||||
| M16 | 2 mm | 23mm | 25mm | 23mm | 108mm | Metal Detectable, X-Ray Detectable | FDA Compliant 21 CFR 177.2600 | 000000000 | 00000 |
| M20 | 2.5 mm | 23mm | 30mm | 25mm | 109mm | Metal Detectable, X-Ray Detectable | FDA Compliant 21 CFR 177.2600 | 000000000 | 00000 |