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The B K/MUELLER INDS(IMPORT) 510-908HC is a 2-inch galvanized lock nut designed to secure conduit, pipe, or fittings to enclosures, panels, and junction boxes. The galvanized finish provides corrosion resistance in wet or outdoor installations. This lock nut is a standard trade hardware item installed by licensed electricians, plumbers, and pipefitters during rough-in and service work. Each package contains 8 units, making it practical for contractors stocking up for larger jobs or service calls.
This lock nut is suited for use in residential and light commercial applications where a secure, vibration-resistant connection between threaded pipe or conduit and a panel knockout is required. The 2-inch size fits standard 2-inch threaded pipe and conduit entries. It is commonly used in conduit runs, galvanized pipe assemblies, and similar installations where a galvanized or steel-compatible fastener is specified.
Designed as an OEM-style replacement lock nut for standard 2-inch threaded pipe and conduit applications in plumbing and electrical installations.
Installation is performed by licensed electricians or pipefitters depending on application. Shut off power or isolate the water supply before beginning work. Thread the lock nut onto the conduit or pipe fitting and tighten securely against the enclosure or panel wall using appropriate pliers or a lock nut wrench. Follow applicable NEC or IPC code requirements for the specific installation type.
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