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About Conduit
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About Nuts, Materials, and Finishes
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Locknuts for Plastic Conduit Fittings
Secure threaded plastic conduit fittings to a knockout in an outlet box or enclosure. PVC locknuts are compatible with PVC Schedule 40 and Schedule 80 conduit with NPT and NPSM threads.
For technical drawings and 3-D models, click on a part number.
| Thread Size | Color | Specifications Met | Each | |
Nylon | ||||
|---|---|---|---|---|
NPT Threads | ||||
| 3/8 | Black | __ | 00000000 | 00000 |
| 1/2 | Black | __ | 00000000 | 000 |
| 3/4 | Black | __ | 00000000 | 000 |
| 1 | Black | __ | 00000000 | 0000 |
| 1 1/4 | Black | __ | 00000000 | 0000 |
| 1 1/2 | Black | __ | 00000000 | 0000 |
| 2 | Black | __ | 00000000 | 0000 |
PG Threads | ||||
| PG-11 | Black | __ | 0000000 | 000 |
| PG-16 | Black | __ | 0000000 | 0000 |
| PG-21 | Black | __ | 0000000 | 0000 |
| PG-29 | Black | __ | 0000000 | 0000 |
| PG-36 | Black | __ | 0000000 | 0000 |
| PG-48 | Black | __ | 00000000 | 0000 |
PVC | ||||
NPSM Threads | ||||
| 1/2 | Gray | UL Recognized | 0000000 | 000 |
| 3/4 | Gray | UL Recognized | 0000000 | 000 |
| 1 | Gray | UL Recognized | 0000000 | 000 |
Locknuts for Metal Conduit Fittings
Stainless Steel,
and Brass
Secure threaded metal conduit fittings to a knockout in an outlet box or enclosure.
Zinc-plated steel and 316 stainless steel locknuts are compatible with NPT and NPSM threads.
Zinc-plated steel locknut with PVC molded gasket creates a seal for moisture protection.
For technical drawings and 3-D models, click on a part number.
| Thread Size | Specifications Met | Pkg. Qty. | Pkg. | |
Zinc-Plated Steel | ||||
|---|---|---|---|---|
NPSM Threads | ||||
| 1/2 | UL Listed, CSA Certified | 10 | 00000000 | 00000 |
| 3/4 | UL Listed, CSA Certified | 10 | 00000000 | 0000 |
| 1 | UL Listed, CSA Certified | 10 | 00000000 | 0000 |
| 1 1/4 | UL Listed, CSA Certified | 10 | 00000000 | 0000 |
| 1 1/2 | UL Listed, CSA Certified | 10 | 00000000 | 0000 |
| 2 | UL Listed, CSA Certified | 10 | 00000000 | 0000 |
Zinc-Plated Steel with PVC Molded Gasket | ||||
NPSM Threads | ||||
| 1/2 | UL Listed, CSA Certified | 2 | 00000000 | 0000 |
| 3/4 | UL Listed, CSA Certified | 2 | 00000000 | 0000 |
| 1 | UL Listed, CSA Certified | 2 | 00000000 | 0000 |
| 1 1/4 | UL Listed, CSA Certified | 2 | 00000000 | 0000 |
| 1 1/2 | UL Listed, CSA Certified | 2 | 00000000 | 0000 |
| 2 | UL Listed, CSA Certified | 2 | 00000000 | 0000 |
| Each | ||||
316 Stainless Steel | ||||
NPSM Threads | ||||
| 1/2 | UL Listed, C-UL Listed | __ | 00000000 | 0000 |
| 3/4 | UL Listed, C-UL Listed | __ | 00000000 | 0000 |
| 1 | UL Listed, C-UL Listed | __ | 00000000 | 0000 |
| 1 1/4 | UL Listed, C-UL Listed | __ | 00000000 | 00000 |
| 1 1/2 | UL Listed, C-UL Listed | __ | 00000000 | 00000 |
| 2 | UL Listed, C-UL Listed | __ | 00000000 | 00000 |
Brass | ||||
Metric Threads | ||||
| M12 | DIN EN 60204 | __ | 0000000 | 0000 |
| M16 | DIN EN 60204 | __ | 0000000 | 0000 |
| M20 | DIN EN 60204 | __ | 0000000 | 0000 |
| M32 | DIN EN 60204 | __ | 0000000 | 0000 |
| M40 | DIN EN 60204 | __ | 0000000 | 00000 |
| M50 | DIN EN 60204 | __ | 0000000 | 00000 |
Steel Hex Panel Nuts
Fasten these panel nuts 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. A zinc plating provides corrosion resistance in wet environments.
For technical drawings and 3-D models, click on a part number.
| Thread Size | Wd. | Ht. | Pkg. Qty. | Pkg. | |
Zinc-Plated Steel | |||||
|---|---|---|---|---|---|
| 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 | 00000 |
| 3/8"-32 | 5/8" | 3/32" | 1 | 000000000 | 0000 |
| 7/16"-28 | 5/8" | 3/32" | 1 | 000000000 | 0000 |
| 15/32"-32 | 9/16" | 5/64" | 1 | 000000000 | 0000 |
| 15/32"-32 | 5/8" | 3/32" | 1 | 000000000 | 0000 |
| 1/2"-28 | 5/8" | 3/32" | 1 | 000000000 | 0000 |
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.
| Thread Size | Wd. | Ht. | Pkg. Qty. | Pkg. | |
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 | 5/8" | 3/32" | 1 | 000000000 | 0000 |
| 7/16"-28 | 5/8" | 3/32" | 1 | 000000000 | 0000 |
| 15/32"-32 | 5/8" | 3/32" | 1 | 000000000 | 0000 |
Nickel-Plated Brass | |||||
| 1/4"-32 | 5/16" | 5/64" | 10 | 000000000 | 0000 |
| 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 |
Stainless Steel Hex Panel Nuts
These panel nuts have good chemical resistance and may be mildly magnetic. They can be fastened with a wrench for more torque while tightening than knurled panel nuts. Also known as dress nuts, they are extremely thin for use in tight spaces such as electrical panels.
For technical drawings and 3-D models, click on a part number.
| Thread Size | Wd. | Ht. | Pkg. Qty. | Pkg. | |
18-8 Stainless Steel | |||||
|---|---|---|---|---|---|
| 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 | 00000 |
| 3/8"-32 | 5/8" | 3/32" | 1 | 000000000 | 0000 |
| 7/16"-28 | 5/8" | 3/32" | 1 | 000000000 | 0000 |
| 15/32"-32 | 9/16" | 5/64" | 1 | 000000000 | 0000 |
| 15/32"-32 | 5/8" | 3/32" | 1 | 000000000 | 0000 |
| 1/2"-28 | 5/8" | 3/32" | 1 | 000000000 | 0000 |
Knurled Panel Nuts
These panel nuts are knurled to provide a secure grip for tightening and loosening by hand. Also known as dress nuts, they're extremely thin for use in tight spaces such as electrical panels. They're zinc plated to resist corrosion in wet environments.
For technical drawings and 3-D models, click on a part number.