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About Nuts, Materials, and Finishes
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How to Identify and Measure Fittings
Pipe size is an industry designation, not the actual size. View information about how to measure threaded and unthreaded pipe and pipe fittings.
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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.
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.
Thread | ||||||
|---|---|---|---|---|---|---|
| Size | Dp. | Wd. | Ht. | Pkg. Qty. | Pkg. | |
Nickel-Plated Steel | ||||||
| 6-32 | 5/32" | 5/16" | 1/4" | 100 | 000000000 | 00000 |
| 8-32 | 5/32" | 5/16" | 1/4" | 100 | 000000000 | 0000 |
| 10-24 | 3/16" | 3/8" | 5/16" | 100 | 000000000 | 0000 |
| 10-32 | 3/16" | 3/8" | 5/16" | 100 | 000000000 | 00000 |
| 1/4"-20 | 1/4" | 7/16" | 3/8" | 100 | 000000000 | 00000 |
| 5/16"-18 | 5/16" | 9/16" | 15/32" | 50 | 000000000 | 00000 |
| 3/8"-16 | 3/8" | 5/8" | 1/2" | 25 | 000000000 | 0000 |
| 1/2"-13 | 1/2" | 3/4" | 9/16" | 25 | 000000000 | 00000 |
| 5/8"-11 | 5/8" | 15/16" | 13/16" | 10 | 000000000 | 00000 |
| 3/4"-10 | 3/4" | 1 1/8" | 1 1/8" | 1 | 000000000 | 0000 |
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.
Thread | ||||||
|---|---|---|---|---|---|---|
| Size | Dp. | Wd. | Ht. | Pkg. Qty. | Pkg. | |
Nickel-Plated Brass | ||||||
| 6-32 | 1/8" | 5/16" | 9/32" | 25 | 000000000 | 00000 |
| 8-32 | 1/8" | 5/16" | 9/32" | 25 | 000000000 | 0000 |
| 10-24 | 5/32" | 3/8" | 11/32" | 25 | 000000000 | 00000 |
| 10-32 | 5/32" | 3/8" | 11/32" | 25 | 000000000 | 00000 |
| 1/4"-20 | 5/32" | 7/16" | 3/8" | 25 | 000000000 | 00000 |
| 1/4"-28 | 5/32" | 7/16" | 3/8" | 10 | 000000000 | 0000 |
| 5/16"-18 | 7/32" | 9/16" | 7/16" | 10 | 000000000 | 00000 |
| 5/16"-24 | 9/32" | 9/16" | 7/16" | 25 | 000000000 | 00000 |
| 3/8"-16 | 1/4" | 5/8" | 1/2" | 10 | 000000000 | 00000 |
| 3/8"-24 | 5/16" | 5/8" | 1/2" | 10 | 000000000 | 0000 |
| 1/2"-20 | 3/8" | 3/4" | 9/16" | 5 | 000000000 | 0000 |
| 5/8"-11 | 7/16" | 15/16" | 3/4" | 1 | 000000000 | 0000 |
| 5/8"-18 | 7/16" | 15/16" | 3/4" | 1 | 000000000 | 0000 |
| 3/4"-10 | 1/2" | 1 1/16" | 7/8" | 1 | 000000000 | 00000 |
| 3/4"-16 | 1/2" | 1 1/16" | 7/8" | 1 | 000000000 | 00000 |
| 1"-8 | 5/8" | 1 7/16" | 1 1/4" | 1 | 000000000 | 00000 |
Brass Hex Panel Nuts
These panel nuts are corrosion resistant in wet environments, electrically conductive, and nonmagnetic. They can be fastened with a wrench for more torque while tightening than knurled panel nuts. Also known as dress nuts, they're extremely thin for use in tight spaces such as electrical panels.
Nickel-plated brass panel nuts have excellent resistance to chemicals and salt water.
For technical drawings and 3-D models, click on a part number.
| Pipe Size | Wd. | Ht. | Pkg. Qty. | Pkg. | |
Nickel-Plated Brass | |||||
|---|---|---|---|---|---|
| 1/8 | 1/2" | 1/8" | 10 | 000000000 | 00000 |
| Thread Size | Wd. | Ht. | Pkg. Qty. | Pkg. | |
Nickel-Plated Brass | |||||
|---|---|---|---|---|---|
| 1/4"-32 | 5/16" | 5/64" | 10 | 000000000 | 00000 |
| 1/4"-32 | 3/8" | 3/32" | 10 | 000000000 | 0000 |
| 5/16"-32 | 7/16" | 7/64" | 10 | 000000000 | 0000 |
| 3/8"-32 | 1/2" | 3/32" | 10 | 000000000 | 0000 |
| 7/16"-28 | 5/8" | 3/32" | 1 | 000000000 | 0000 |
| 15/32"-32 | 9/16" | 5/64" | 10 | 000000000 | 0000 |
| 15/32"-32 | 9/16" | 3/32" | 10 | 000000000 | 0000 |
| 1/2"-28 | 5/8" | 1/8" | 10 | 000000000 | 0000 |
Brass Sealing Nuts
These nickel-plated brass sealing nuts have good resistance to chemicals and salt water. A nickel plating provides additional corrosion resistance and a decorative metallic finish. They have a silicone seal that prevents leaks and seals out contaminants. All meet UL 50 for use on enclosures. Nuts are nonmagnetic.
For technical drawings and 3-D models, click on a part number.
| Thread Size | Wd. | Ht. | Max. Pressure | Seal Temp. Range, °F | Specifications Met | Each | |
Nickel-Plated Brass | |||||||
|---|---|---|---|---|---|---|---|
| 6-32 | 1/2" | 7/32" | 6,000 psi | -100° to 400° | UL 50 | 000000000 | 00000 |
| 8-32 | 1/2" | 7/32" | 6,000 psi | -100° to 400° | UL 50 | 000000000 | 0000 |
| 10-24 | 1/2" | 7/32" | 6,000 psi | -100° to 400° | UL 50 | 000000000 | 0000 |
| 10-32 | 1/2" | 7/32" | 6,000 psi | -100° to 400° | UL 50 | 000000000 | 0000 |
| 1/4"-20 | 5/8" | 7/32" | 6,000 psi | -100° to 400° | UL 50 | 000000000 | 0000 |
| 1/4"-28 | 5/8" | 7/32" | 6,000 psi | -100° to 400° | UL 50 | 000000000 | 0000 |
| 3/8"-16 | 5/8" | 7/32" | 6,000 psi | -100° to 400° | UL 50 | 000000000 | 0000 |
| 3/8"-24 | 5/8" | 7/32" | 6,000 psi | -100° to 400° | UL 50 | 000000000 | 0000 |
| 1/2"-20 | 3/4" | 7/32" | 6,000 psi | -100° to 400° | UL 50 | 000000000 | 0000 |
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.
| Number of Pieces | Sizes Included | Container Type | Each | |
Inch | ||||
|---|---|---|---|---|
Nickel-Plated Steel | ||||
| 200 | 6-32 to 3/8"-16 | Plastic Box | 000000000 | 000000 |
Push-On Retaining Caps
Use these caps to hold components in place and protect shaft ends. Install these caps with a hammer or push them into place by hand.
Nickel-plated finish has excellent corrosion resistance and a decorative appearance.
For technical drawings and 3-D models, click on a part number.
Nuts for Nickel-Plated Brass
Compression Fittings for Copper Tubing
- For Use With: Air, Cutting Oil, Diesel Fuel, Ethyl Alcohol, Fuel Oil, Gasoline, Hydraulic Fluid, Isopropyl Alcohol, Lubricants, Mineral Oil, Natural Gas, Steam, Water
- Temperature Range: -75° to 550° F
- Tubing: Use with copper
- Specifications Met: DIN 3870
Create a strong seal on copper tubing when you couple these nuts with compression sleeves and fittings. Made of nickel-plated brass, they resist corrosion better than plain brass. All meet DIN 3870, which is an international standard for tube fitting dimensions.
For technical drawings and 3-D models, click on a part number.
For Tube | |||||||
|---|---|---|---|---|---|---|---|
| OD, mm | Wall Thickness, mm | Nut Material | Maximum Pressure | Length, mm | Pkg. Qty. | Pkg. | |
Short Nuts | |||||||
| 4 | 1 | Nickel-Plated Brass | 1,800 psi @ 72° F | 11 | 5 | 00000000 | 00000 |
| 6 | 1 | Nickel-Plated Brass | 2,500 psi @ 72° F | 12 | 5 | 00000000 | 000 |
| 8 | 1 | Nickel-Plated Brass | 2,100 psi @ 72° F | 12 | 5 | 00000000 | 000 |
| 10 | 1 | Nickel-Plated Brass | 1,600 psi @ 72° F | 16 | 5 | 00000000 | 0000 |
| 12 | 1 | Nickel-Plated Brass | 1,000 psi @ 72° F | 16 | 5 | 00000000 | 0000 |
| 14 | 1 | Nickel-Plated Brass | 1,000 psi @ 72° F | 19 | 5 | 00000000 | 0000 |
| 15 | 1 | Nickel-Plated Brass | 1,000 psi @ 72° F | 17 | 5 | 00000000 | 0000 |
| 16 | 1 | Nickel-Plated Brass | 1,000 psi @ 72° F | 19 | 5 | 00000000 | 0000 |
| 18 | 1 | Nickel-Plated Brass | 900 psi @ 72° F | 18 | 5 | 00000000 | 0000 |