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About Nuts, Materials, and Finishes
More
Stainless Steel Sealing Nuts

These nuts have good chemical resistance and may be mildly magnetic. They have a molded silicone seal that prevents leaks and seals out contaminants. They meet UL 50 for use on enclosures.
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 | |
18-8 Stainless Steel | |||||||
---|---|---|---|---|---|---|---|
6-32 | 5/16" | 9/64" | 6,000 psi | -100° to 400° | UL 50 | 000000000 | 00000 |
8-32 | 3/8" | 5/32" | 6,000 psi | -100° to 400° | UL 50 | 000000000 | 0000 |
10-24 | 3/8" | 5/32" | 6,000 psi | -100° to 400° | UL 50 | 000000000 | 0000 |
10-32 | 3/8" | 5/32" | 6,000 psi | -100° to 400° | UL 50 | 000000000 | 0000 |
1/4"-20 | 7/16" | 7/32" | 6,000 psi | -100° to 400° | UL 50 | 000000000 | 0000 |
1/4"-28 | 7/16" | 7/32" | 6,000 psi | -100° to 400° | UL 50 | 000000000 | 0000 |
5/16"-18 | 1/2" | 17/64" | 6,000 psi | -100° to 400° | UL 50 | 000000000 | 0000 |
5/16"-24 | 1/2" | 17/64" | 6,000 psi | -100° to 400° | UL 50 | 000000000 | 0000 |
3/8"-16 | 9/16" | 21/64" | 6,000 psi | -100° to 400° | UL 50 | 000000000 | 0000 |
3/8"-24 | 9/16" | 21/64" | 6,000 psi | -100° to 400° | UL 50 | 000000000 | 0000 |
7/16"-20 | 11/16" | 3/8" | 6,000 psi | -100° to 400° | UL 50 | 000000000 | 0000 |
1/2"-13 | 3/4" | 27/64" | 6,000 psi | -100° to 400° | UL 50 | 000000000 | 0000 |
1/2"-20 | 3/4" | 27/64" | 6,000 psi | -100° to 400° | UL 50 | 000000000 | 0000 |
5/8"-18 | 15/16" | 35/64" | 6,000 psi | -100° to 400° | UL 50 | 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 |
Sanitary Low-Profile Cap Nuts

Certified by EHEDG (European Hygienic Engineering and Design Group) to meet sanitary design standards, these cap nuts fit into tight spaces to cover and seal exposed threads in your food processing facility. Also known as acorn nuts, they’re at least 20% shorter than standard cap nuts. Made from 316 stainless steel, these nuts won’t corrode from frequent washdowns with water or harsh cleaners. They are self-draining, meaning that they don’t have horizontal surfaces, so liquids and debris will drain off completely. They also have extremely smooth sides and rounded edges to eliminate crevices where bacteria could grow.
The silicone seal at the base of the nut keeps contaminants off the threads and prevents an unsanitary metal-to-metal connection. It’s made with metal and chemical additives, so you can find it with a metal detector or X-ray machine if it falls into your line. This helps you comply with Hazard Analysis and Critical Control Point (HACCP) programs to keep contaminated food from leaving your facility. The seal is also FDA compliant, so it’s safe for direct contact with food.
For technical drawings and 3-D models, click on a part number.
Thread | ||||||||
---|---|---|---|---|---|---|---|---|
Size | Pitch | Dp. | Wd. | Ht. | Performance Properties | Specifications Met | Each | |
316 Stainless Steel—Silicone Rubber Seal | ||||||||
Inch | ||||||||
1/4"-20 | __ | 1/4" | 7/16" | 21/64" | Metal Detectable, X-Ray Detectable | EHEDG Certified, FDA Compliant 21 CFR 177.2600 | 000000000 | 00000 |
5/16"-18 | __ | 9/32" | 1/2" | 25/64" | Metal Detectable, X-Ray Detectable | EHEDG Certified, FDA Compliant 21 CFR 177.2600 | 000000000 | 0000 |
3/8"-16 | __ | 5/16" | 9/16" | 15/32" | Metal Detectable, X-Ray Detectable | EHEDG Certified, FDA Compliant 21 CFR 177.2600 | 000000000 | 0000 |
7/16"-14 | __ | 21/64" | 11/16" | 33/64" | Metal Detectable, X-Ray Detectable | EHEDG Certified, FDA Compliant 21 CFR 177.2600 | 000000000 | 00000 |
1/2"-13 | __ | 11/32" | 3/4" | 35/64" | Metal Detectable, X-Ray Detectable | EHEDG Certified, FDA Compliant 21 CFR 177.2600 | 000000000 | 00000 |
5/8"-11 | __ | 7/16" | 15/16" | 43/64" | Metal Detectable, X-Ray Detectable | EHEDG Certified, FDA Compliant 21 CFR 177.2600 | 000000000 | 00000 |
Metric | ||||||||
M6 | 1 mm | 5.5mm | 10mm | 8mm | Metal Detectable, X-Ray Detectable | EHEDG Certified, FDA Compliant 21 CFR 177.2600 | 000000000 | 00000 |
M8 | 1.25 mm | 6.5mm | 13mm | 10mm | Metal Detectable, X-Ray Detectable | EHEDG Certified, FDA Compliant 21 CFR 177.2600 | 000000000 | 00000 |
M10 | 1.5 mm | 8mm | 16mm | 12mm | Metal Detectable, X-Ray Detectable | EHEDG Certified, FDA Compliant 21 CFR 177.2600 | 000000000 | 00000 |
M12 | 1.75 mm | 9mm | 18mm | 14mm | Metal Detectable, X-Ray Detectable | EHEDG Certified, FDA Compliant 21 CFR 177.2600 | 000000000 | 00000 |
M16 | 2 mm | 10.5mm | 24mm | 17mm | Metal Detectable, X-Ray Detectable | EHEDG Certified, FDA Compliant 21 CFR 177.2600 | 000000000 | 00000 |
Flange-Sealing Rivet Nuts

The PVC foam seal under the flange keeps liquids and gasses from leaking between the nut and the surrounding material. These rivet nuts have a ribbed body to hold them in place when tightening a screw. The body is aluminum and mildly corrosion resistant. Install in a drilled hole using a rivet nut tool. The tool collapses the nut, creating a backside flange that holds the nut to the material. Length is measured from under the flange. Installed length is the maximum length of the barrel when installed.
For technical drawings and 3-D models, click on a part number.

Body | Flange | |||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|
Thread Size | Drill Bit Size | For Material Thick. | Type | Dia. | Lg. | Installed Lg. | Dia. | Thick. | Seal Material | Pkg. Qty. | Pkg. | |
Aluminum | ||||||||||||
6-32 | 17/64" | 0.020" to 0.080" | Ribbed | 0.265" | 0.420" | 0.305" | 0.390" | 0.030" | PVC Foam | 10 | 000000000 | 00000 |
6-32 | 17/64" | 0.080" to 0.130" | Ribbed | 0.265" | 0.470" | 0.305" | 0.390" | 0.030" | PVC Foam | 10 | 000000000 | 0000 |
8-32 | 17/64" | 0.020" to 0.080" | Ribbed | 0.265" | 0.420" | 0.305" | 0.390" | 0.030" | PVC Foam | 10 | 000000000 | 0000 |
8-32 | 17/64" | 0.080" to 0.130" | Ribbed | 0.265" | 0.470" | 0.305" | 0.390" | 0.030" | PVC Foam | 10 | 000000000 | 0000 |
10-24 | 19/64" | 0.020" to 0.130" | Ribbed | 0.296" | 0.475" | 0.315" | 0.415" | 0.030" | PVC Foam | 10 | 000000000 | 0000 |
10-24 | 19/64" | 0.130" to 0.225" | Ribbed | 0.296" | 0.585" | 0.315" | 0.415" | 0.030" | PVC Foam | 10 | 000000000 | 0000 |
10-32 | 19/64" | 0.020" to 0.130" | Ribbed | 0.296" | 0.475" | 0.315" | 0.415" | 0.030" | PVC Foam | 10 | 000000000 | 0000 |
1/4"-20 | 25/64" | 0.027" to 0.165" | Ribbed | 0.390" | 0.580" | 0.380" | 0.500" | 0.030" | PVC Foam | 10 | 000000000 | 0000 |
1/4"-20 | 25/64" | 0.027" to 0.165" | Ribbed | 0.390" | 0.680" | 0.380" | 0.500" | 0.030" | PVC Foam | 10 | 000000000 | 00000 |
5/16"-18 | 17/32" | 0.027" to 0.150" | Ribbed | 0.530" | 0.705" | 0.470" | 0.710" | 0.035" | PVC Foam | 10 | 000000000 | 0000 |
5/16"-18 | 17/32" | 0.150" to 0.312" | Ribbed | 0.530" | 0.805" | 0.425" | 0.685" | 0.035" | PVC Foam | 10 | 000000000 | 0000 |
3/8"-16 | 17/32" | 0.027" to 0.150" | Ribbed | 0.530" | 0.690" | 0.470" | 0.685" | 0.035" | PVC Foam | 5 | 000000000 | 0000 |
3/8"-16 | 17/32" | 0.150" to 0.312" | Ribbed | 0.530" | 0.805" | 0.425" | 0.685" | 0.035" | PVC Foam | 5 | 000000000 | 00000 |

Thread | Body | Flange | |||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Size | Pitch, mm | Drill Bit Size | For Material Thick., mm | Type | Dia., mm | Lg., mm | Installed Lg., mm | Dia., mm | Thick. | Seal Material | Pkg. Qty. | Pkg. | |
Aluminum | |||||||||||||
M4 | 0.7 | 6.8 mm | 2.000 to 3.300 | Ribbed | 6.700 | 11.900 | 7.800 | 9.900 | 0.800mm | PVC Foam | 10 | 000000000 | 000000 |
M5 | 0.8 | 7.6 mm | 0.500 to 3.300 | Ribbed | 7.500 | 12.100 | 8.000 | 10.500 | 0.800mm | PVC Foam | 10 | 000000000 | 00000 |
M6 | 1 | 10 mm | 0.700 to 4.200 | Ribbed | 9.900 | 14.700 | 9.700 | 12.700 | 0.800mm | PVC Foam | 10 | 000000000 | 00000 |
M8 | 1.25 | 13.5 mm | 0.700 to 3.800 | Ribbed | 13.500 | 17.500 | 11.900 | 17.400 | 0.900" | PVC Foam | 10 | 000000000 | 00000 |
Thread-Sealing Closed-End Rivet Nuts

The thread area is enclosed, which prevents leakage past the threads from either side of your application. These rivet nuts have a ribbed body to hold them in place when tightening a screw. The body and flange are zinc yellow-chromate plated steel for corrosion resistance. Install in a drilled hole using a rivet nut tool. The tool collapses the nut, creating a backside flange that holds the nut to the material. Length is measured from under the flange. Installed length is the maximum length of the barrel when installed.
For technical drawings and 3-D models, click on a part number.

Body | Flange | ||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|
Thread Size | Drill Bit Size | For Material Thick. | Type | Dia. | Lg. | Installed Lg. | Dia. | Thick. | Pkg. Qty. | Pkg. | |
Zinc Yellow-Chromate-Plated Steel | |||||||||||
6-32 | 17/64" | 0.020" to 0.080" | Ribbed | 0.265" | 0.74" | 0.640" | 0.390" | 0.03" | 25 | 000000000 | 000000 |
8-32 | 17/64" | 0.020" to 0.080" | Ribbed | 0.265" | 0.74" | 0.640" | 0.390" | 0.03" | 25 | 000000000 | 00000 |
8-32 | 17/64" | 0.080" to 0.130" | Ribbed | 0.265" | 0.74" | 0.580" | 0.390" | 0.03" | 25 | 000000000 | 00000 |
10-24 | 19/64" | 0.020" to 0.130" | Ribbed | 0.296" | 0.99" | 0.845" | 0.415" | 0.03" | 25 | 000000000 | 00000 |
10-24 | 19/64" | 0.130" to 0.225" | Ribbed | 0.296" | 0.99" | 0.735" | 0.415" | 0.03" | 25 | 000000000 | 00000 |
10-32 | 19/64" | 0.020" to 0.130" | Ribbed | 0.296" | 0.99" | 0.845" | 0.415" | 0.03" | 25 | 000000000 | 00000 |
10-32 | 19/64" | 0.130" to 0.225" | Ribbed | 0.296" | 0.99" | 0.735" | 0.415" | 0.03" | 10 | 000000000 | 0000 |
1/4"-20 | 25/64" | 0.027" to 0.165" | Ribbed | 0.390" | 1.19" | 1.005" | 0.500" | 0.03" | 10 | 000000000 | 0000 |
1/4"-20 | 25/64" | 0.165" to 0.260" | Ribbed | 0.390" | 1.19" | 0.905" | 0.500" | 0.03" | 10 | 000000000 | 0000 |

Thread | Body | Flange | ||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|
Size | Pitch, mm | Drill Bit Size | For Material Thick., mm | Type | Dia., mm | Lg., mm | Installed Lg., mm | Dia., mm | Thick., mm | Pkg. Qty. | Pkg. | |
Zinc Yellow-Chromate-Plated Steel | ||||||||||||
M6 | 1 | 10 mm | 0.700 to 4.200 | Ribbed | 9.900 | 30.2 | 25.500 | 12.700 | 0.8 | 10 | 000000000 | 00000 |
M6 | 1 | 10 mm | 4.200 to 6.600 | Ribbed | 9.900 | 30.2 | 23.000 | 12.700 | 0.8 | 10 | 000000000 | 0000 |
M8 | 1.25 | 13.5 mm | 0.700 to 3.800 | Ribbed | 13.500 | 35.3 | 29.900 | 17.400 | 0.9 | 10 | 000000000 | 0000 |
M8 | 1.25 | 13.5 mm | 3.800 to 7.900 | Ribbed | 13.500 | 35.3 | 26.000 | 17.400 | 0.9 | 10 | 000000000 | 00000 |
M10 | 1.5 | 13.5 mm | 3.800 to 7.900 | Ribbed | 13.500 | 35.3 | 26.000 | 17.400 | 0.9 | 10 | 000000000 | 00000 |
Insulating Rivet Nuts

A nonconductive rubber coating insulates the nut from electricity, seals out moisture, and damps vibration. Also known as well nuts. Length is measured from under the flange.
For technical drawings and 3-D models, click on a part number.

Body | Flange | |||||||||
---|---|---|---|---|---|---|---|---|---|---|
Thread Size | For Material Thick. | Hole Dia. | Type | Dia. | Lg. | Dia. | Thick. | Pkg. Qty. | Pkg. | |
Neoprene Rubber-Coated Brass | ||||||||||
6-32 | 0.015" to 0.156" | 5/16" | Smooth | 0.312" | 0.437" | 0.452" | 0.062" | 10 | 000000000 | 00000 |
6-32 | 0.374" to 0.593" | 1/4" | Smooth | 0.24" | 0.946" | 0.554" | 0.035" | 10 | 000000000 | 0000 |
8-32 | 0.015" to 0.156" | 5/16" | Smooth | 0.312" | 0.447" | 0.438" | 0.052" | 10 | 000000000 | 0000 |
10-24 | 0.015" to 0.050" | 3/8" | Smooth | 0.375" | 0.437" | 0.562" | 0.125" | 10 | 000000000 | 0000 |
10-24 | 0.030" to 0.277" | 3/8" | Smooth | 0.375" | 0.580" | 0.562" | 0.190" | 10 | 000000000 | 00000 |
10-32 | 0.015" to 0.188" | 3/8" | Smooth | 0.375" | 0.518" | 0.500" | 0.036" | 10 | 000000000 | 0000 |
10-32 | 0.047" to 0.219" | 3/8" | Smooth | 0.375" | 0.625" | 0.562" | 0.040" | 10 | 000000000 | 0000 |
10-32 | 0.312" to 0.625" | 3/8" | Smooth | 0.375" | 1.000" | 0.562" | 0.051" | 10 | 000000000 | 00000 |
10-32 | 0.812" to 1.143" | 3/8" | Smooth | 0.375" | 1.500" | 0.562" | 0.051" | 10 | 000000000 | 00000 |
1/4"-20 | 0.015" to 0.094" | 1/2" | Smooth | 0.5" | 0.579" | 0.630" | 0.051" | 10 | 000000000 | 00000 |
1/4"-20 | 0.031" to 0.187" | 1/2" | Smooth | 0.5" | 0.642" | 0.750" | 0.187" | 10 | 000000000 | 00000 |
1/4"-20 | 0.197" to 0.342" | 1/2" | Smooth | 0.5" | 0.750" | 0.625" | 0.051" | 10 | 000000000 | 0000 |
1/4"-20 | 0.250" to 0.438" | 1/2" | Smooth | 0.5" | 1.000" | 0.635" | 0.051" | 10 | 000000000 | 00000 |
5/16"-18 | 0.015" to 0.156" | 5/8" | Smooth | 0.62" | 0.600" | 0.875" | 0.125" | 5 | 000000000 | 00000 |
5/16"-18 | 0.156" to 0.375" | 5/8" | Smooth | 0.62" | 0.875" | 0.875" | 0.230" | 5 | 000000000 | 00000 |
3/8"-16 | 0.015" to 0.437" | 3/4" | Smooth | 0.75" | 0.875" | 1.250" | 0.187" | 1 | 000000000 | 0000 |

Thread | Body | Flange | |||||||||
---|---|---|---|---|---|---|---|---|---|---|---|
Size | Pitch, mm | For Material Thick., mm | Hole Dia., mm | Type | Dia., mm | Lg., mm | Dia., mm | Thick., mm | Pkg. Qty. | Pkg. | |
Neoprene Rubber-Coated Brass | |||||||||||
M3 | 0.5 | 0.4 to 4 | 7.92 | Smooth | 7.92 | 11.1 | 11.48 | 1.6 | 10 | 000000000 | 00000 |
M3 | 0.5 | 9.5 to 13 | 6.2 | Smooth | 6.1 | 24 | 14 | 0.9 | 10 | 000000000 | 0000 |
M4 | 0.7 | 0.4 to 4 | 8 | Smooth | 7.9 | 11.4 | 11 | 1.2 | 10 | 000000000 | 0000 |
M5 | 0.8 | 0.4 to 4.9 | 9.6 | Smooth | 9.58 | 13.2 | 12.7 | 0.9 | 10 | 000000000 | 0000 |
M5 | 0.8 | 4 to 10 | 9.7 | Smooth | 9.6 | 20.6 | 14 | 0.9 | 10 | 000000000 | 0000 |
M5 | 0.8 | 7.9 to 16.3 | 9.53 | Smooth | 9.53 | 25.4 | 14.27 | 1.3 | 10 | 000000000 | 0000 |
M5 | 0.8 | 20.5 to 30 | 9.7 | Smooth | 9.6 | 37.7 | 14 | 1.3 | 10 | 000000000 | 0000 |
M6 | 1 | 0.4 to 2.8 | 12.7 | Smooth | 12.7 | 14.7 | 16 | 1.3 | 10 | 000000000 | 0000 |
M6 | 1 | 0.8 to 4.8 | 12.7 | Smooth | 12.7 | 16.3 | 18.8 | 4.8 | 10 | 000000000 | 00000 |
M6 | 1 | 4.8 to 8.7 | 12.7 | Smooth | 12.7 | 19 | 16.13 | 1.3 | 10 | 000000000 | 0000 |
M6 | 1 | 6.4 to 11.6 | 12.7 | Smooth | 12.7 | 25.4 | 16.13 | 1.3 | 10 | 000000000 | 00000 |
M8 | 1.25 | 0.4 to 4 | 15.88 | Smooth | 15.88 | 15.2 | 22.23 | 3.2 | 5 | 000000000 | 0000 |
M8 | 1.25 | 0.4 to 11.1 | 19.15 | Smooth | 19.05 | 22.3 | 31.75 | 4.8 | 5 | 000000000 | 0000 |
M10 | 1.5 | 0.4 to 11.1 | 19.05 | Smooth | 19.05 | 22.2 | 31.75 | 4.8 | 5 | 000000000 | 00000 |
Sealing Screw-to-Install Rivet Nuts


A coated flange seals out moisture and offers corrosion resistance. Large slits in the body allow these rivet nuts to collapse and flare when you fasten them with a screw. They have a backside flange that distributes force to resist pull-through in thin metals. For quicker installation, use a rivet nut tool. Length is measured from under the flange.
For technical drawings and 3-D models, click on a part number.
Body | Flange | |||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|
Thread Size | Drill Bit Size | For Material Thick. | Type | Dia. | Lg. | Dia. | Thick. | No. of Folding Sides | Seal Material | Pkg. Qty. | Pkg. | |
Steel | ||||||||||||
1/4"-20 | 7/16" | 0.016" to0.188" | Bulbed | 0.472" | 0.732" | 0.63" | 0.073" | 4 | Acrylic Plastic | 10 | 000000000 | 00000 |