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Locknuts for Metal Conduit Fittings
Zinc-Plated
Steel, 316 Stainless
Steel, and Aluminum
Steel, 316 Stainless
Steel, and Aluminum
Zinc-Plated Steel with PVC Molded Gasket
Zinc-Plated
Steel with
Serrated Facing
Steel with
Serrated Facing
304 Stainless Steel
Brass
Secure threaded metal conduit fittings to a knockout in an outlet box or enclosure.
Zinc-plated steel, 316 stainless steel, and aluminum locknuts are compatible with NPSL and NPSM threads.
Locknuts with a PVC molded gasket create a seal for moisture protection.
Locknuts with serrated facing grip the material surface for more stability, compared to locknuts with smooth facing.
Pipe Size | Thread Size | Specifications Met | Pkg. Qty. | Pkg. | |
Zinc-Plated Steel | |||||
|---|---|---|---|---|---|
NPSM Threads | |||||
| 1/2 | __ | UL Listed, CSA Certified | 10 | 7513K241 | 00000 |
| 3/4 | __ | UL Listed, CSA Certified | 10 | 7513K242 | 0000 |
| 1 | __ | UL Listed, CSA Certified | 10 | 7513K243 | 0000 |
| 1 1/2 | __ | UL Listed, CSA Certified | 10 | 7513K245 | 00000 |
| 1 1/4 | __ | UL Listed, CSA Certified | 10 | 7513K244 | 0000 |
| 2 | __ | UL Listed, CSA Certified | 10 | 7513K246 | 00000 |
| Each | |||||
| 2 1/2 | __ | CSA Certified | __ | 7513K111 | 0000 |
| 3 | __ | CSA Certified | __ | 7513K112 | 0000 |
| 3 1/2 | __ | CSA Certified | __ | 7513K113 | 0000 |
| 4 | __ | CSA Certified | __ | 7513K114 | 0000 |
| Pkg. | |||||
Zinc-Plated Steel with PVC Molded Gasket | |||||
NPSM Threads | |||||
| 1/2 | __ | UL Listed, CSA Certified | 2 | 7513K311 | 0000 |
| 3/4 | __ | UL Listed, CSA Certified | 2 | 7513K312 | 0000 |
| 1 | __ | UL Listed, CSA Certified | 2 | 7513K313 | 0000 |
| 1 1/2 | __ | UL Listed, CSA Certified | 2 | 7513K315 | 0000 |
| 1 1/4 | __ | UL Listed, CSA Certified | 2 | 7513K314 | 0000 |
| 2 | __ | UL Listed, CSA Certified | 2 | 7513K316 | 00000 |
| Each | |||||
| 2 1/2 | __ | CSA Certified | __ | 7513K115 | 00000 |
| 3 | __ | CSA Certified | __ | 7513K116 | 00000 |
| 3 1/2 | __ | CSA Certified | __ | 7513K117 | 00000 |
Zinc-Plated Steel with Serrated Facing | |||||
NPSM Threads | |||||
| 1/2 | __ | UL Listed, CSA Certified | __ | 7513K119 | 0000 |
| 3/4 | __ | UL Listed, CSA Certified | __ | 7513K129 | 0000 |
| 1 | __ | UL Listed, CSA Certified | __ | 7513K121 | 0000 |
| 1 1/2 | __ | UL Listed, CSA Certified | __ | 7513K123 | 0000 |
| 1 1/4 | __ | UL Listed, CSA Certified | __ | 7513K122 | 0000 |
| 2 | __ | UL Listed, CSA Certified | __ | 7513K124 | 0000 |
| 2 1/2 | __ | CSA Certified | __ | 7513K125 | 00000 |
| 3 | __ | CSA Certified | __ | 7513K126 | 00000 |
| 4 | __ | CSA Certified | __ | 7513K128 | 00000 |
304 Stainless Steel | |||||
PG Threads | |||||
| __ | PG-7 | __ | __ | 7513K141 | 0000 |
| __ | PG-9 | __ | __ | 7513K142 | 00000 |
| __ | PG-11 | __ | __ | 7513K143 | 0000 |
| __ | PG-13.5 | __ | __ | 7513K144 | 00000 |
| __ | PG-16 | __ | __ | 7513K145 | 00000 |
| __ | PG-21 | __ | __ | 7513K146 | 00000 |
| __ | PG-29 | __ | __ | 7513K147 | 00000 |
| __ | PG-36 | __ | __ | 7513K148 | 00000 |
Metric Threads | |||||
| __ | M8 | __ | __ | 7513K131 | 0000 |
| __ | M12 | __ | __ | 7513K133 | 00000 |
| __ | M16 | __ | __ | 7513K134 | 00000 |
| __ | M20 | __ | __ | 7513K135 | 00000 |
| __ | M25 | __ | __ | 7513K136 | 00000 |
| __ | M32 | __ | __ | 7513K137 | 00000 |
| __ | M40 | __ | __ | 7513K138 | 00000 |
| __ | M50 | __ | __ | 7513K139 | 00000 |
| __ | M63 | __ | __ | 7513K149 | 00000 |
316 Stainless Steel | |||||
NPSL | |||||
| 1/2 | __ | UL Listed, C-UL Listed | __ | 7513K317 | 00000 |
| 3/4 | __ | UL Listed, C-UL Listed | __ | 7513K318 | 00000 |
| 1 | __ | UL Listed, C-UL Listed | __ | 7513K319 | 00000 |
| 1 1/2 | __ | UL Listed, C-UL Listed | __ | 7513K412 | 00000 |
| 1 1/4 | __ | UL Listed, C-UL Listed | __ | 7513K411 | 00000 |
| 2 | __ | UL Listed, C-UL Listed | __ | 7513K413 | 00000 |
| 3 | __ | UL Listed, C-UL Listed | __ | 7513K152 | 00000 |
| 4 | __ | UL Listed, C-UL Listed | __ | 7513K153 | 00000 |
Aluminum | |||||
NPSM Threads | |||||
| 1/2 | __ | __ | __ | 9147T123 | 0000 |
| 3/4 | __ | __ | __ | 9147T124 | 0000 |
| 1 | __ | __ | __ | 9147T125 | 0000 |
| 1 1/2 | __ | __ | __ | 9147T127 | 00000 |
| 1 1/4 | __ | __ | __ | 9147T126 | 0000 |
| 2 | __ | __ | __ | 9147T128 | 00000 |
Brass | |||||
Metric Threads | |||||
| __ | M12 | DIN EN 60204 | __ | 9147T17 | 0000 |
| __ | M16 | DIN EN 60204 | __ | 9147T18 | 0000 |
| __ | M20 | DIN EN 60204 | __ | 9147T19 | 0000 |
| __ | M25 | DIN EN 60204 | __ | 9147T111 | 0000 |
| __ | M32 | DIN EN 60204 | __ | 9147T21 | 0000 |
| __ | M40 | DIN EN 60204 | __ | 9147T22 | 00000 |
| __ | M50 | DIN EN 60204 | __ | 9147T23 | 00000 |
| __ | M63 | DIN EN 60204 | __ | 9147T112 | 00000 |
Locknuts for Plastic Conduit Fittings
Nylon
PVC
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.
Black | Gray | |||||
|---|---|---|---|---|---|---|
| Thread Size | Pipe Size | Specifications Met | Each | Each | ||
Nylon | ||||||
NPT Threads | ||||||
| __ | 1/4 | __ | 7877N101 | 00000 | 7877N102 | 00000 |
| __ | 3/8 | __ | 3185K111 | 000 | 7877N103 | 000 |
| __ | 1/2 | __ | 3185K112 | 000 | 7877N104 | 0000 |
| __ | 3/4 | __ | 3185K113 | 0000 | 7877N105 | 0000 |
| __ | 1 | __ | 3185K114 | 0000 | 7877N106 | 0000 |
| __ | 1 1/4 | __ | 3185K115 | 0000 | 7877N107 | 0000 |
| __ | 1 1/2 | __ | 3185K116 | 0000 | 7877N108 | 0000 |
| __ | 2 | __ | 3185K117 | 00000 | 7877N109 | 00000 |
PG Threads | ||||||
| PG-11 | __ | __ | 3185K91 | 0000 | 7877N119 | 0000 |
| PG-13.5 | __ | __ | 3185K92 | 0000 | 7877N12 | 0000 |
| PG-16 | __ | __ | 3185K93 | 0000 | 7877N121 | 0000 |
| PG-21 | __ | __ | 3185K94 | 0000 | 7877N122 | 0000 |
| PG-29 | __ | __ | 3185K95 | 0000 | 7877N123 | 0000 |
| PG-36 | __ | __ | 3185K96 | 00000 | 7877N124 | 00000 |
| PG-48 | __ | __ | 3185K133 | 00000 | ______ | 00 |
| PG-7 | __ | __ | 7877N11 | 000 | 7877N116 | 000 |
| PG-9 | __ | __ | 7877N117 | 0000 | 7877N118 | 0000 |
Metric Threads | ||||||
| M12 | __ | __ | 7877N126 | 0000 | 7877N127 | 0000 |
| M16 | __ | __ | 7877N128 | 0000 | 7877N129 | 0000 |
| M20 | __ | __ | 7877N13 | 0000 | 7877N113 | 0000 |
| M25 | __ | __ | 7877N131 | 0000 | 7877N132 | 0000 |
| M32 | __ | __ | 7877N133 | 0000 | 7877N134 | 0000 |
| M40 | __ | __ | 7877N114 | 0000 | 7877N135 | 0000 |
| M50 | __ | __ | 7877N115 | 00000 | ______ | 00 |
| M63 | __ | __ | 7877N137 | 00000 | 7877N138 | 00000 |
PVC | ||||||
NPSM Threads | ||||||
| __ | 1/2 | UL Recognized Component | ______ | 00 | 7945K81 | 000 |
| __ | 3/4 | UL Recognized Component | ______ | 00 | 7945K82 | 0000 |
| __ | 1 | UL Recognized Component | ______ | 00 | 7945K83 | 0000 |