Ground continuity at every box termination is non-negotiable — and this 1/2" steel locknut makes sure it happens. Designed to thread directly onto connectors and conduit fittings, it bites tight against the knockout to create a solid metallic bond that satisfies code from residential roughing to commercial panel work. The cULus listing backs every installation with confidence, and the all-steel construction at 3.35 mm profile holds secure without crowding adjacent hardware. At the 1/2" trade size, it covers the most common conduit run on the job. Keep a full supply in the bag and you'll never stall a termination waiting on a locknut.

The 3/4" trade size is the workhorse of the conduit world, and this cULus-listed steel locknut is built to match its pace. Thread it onto any 3/4" connector or fitting, tighten it firm against the knockout, and you have a metallic connection that grounds reliably and stays put through vibration and thermal cycling. All-steel construction keeps ground continuity intact in residential, commercial, and industrial applications, while the 3.35 mm profile fits neatly within congested box entries. Whether you're terminating a handful of runs or a whole wall of panels, this is the steel locknut you reach for at 3/4".

Moving up to 1" conduit means more current-carrying capacity — and the locknut securing it needs to be equally dependable. This cULus-listed 1" steel locknut threads firmly onto connectors and conduit fittings to lock down ground continuity at every box entry on commercial and industrial jobs. The solid steel construction resists loosening under vibration and maintains the metallic bond that inspectors expect. At 3.35 mm profile, it seats cleanly at the knockout without interfering with adjacent hardware or cover plates. For electrical contractors running heavier conduit systems, this steel locknut is a straightforward, cULus-backed solution that removes one variable from the inspection checklist.

Larger conduit systems demand hardware that keeps up — and this cULus-listed 1-1/4" steel locknut delivers the metallic ground connection required at every box entry. It threads directly onto 1-1/4" connectors and conduit fittings, locking tight against the knockout to establish the ground continuity path that both code and safety require. Built entirely from steel at a 3.35 mm profile, it handles the demands of commercial and industrial installations without added bulk. Suitable for damp locations and applicable in residential, commercial, and industrial settings, it's the dependable steel locknut choice when running larger feeder conduit to panels and sub-panels.

For the heavy conduit runs feeding large panels and distribution boards, every fitting has to hold and every ground path has to be solid. This cULus-listed 1-1/2" steel locknut is engineered exactly for that role — threading firmly onto 1-1/2" conduit fittings and connectors to lock down the metallic bond that ground continuity codes require. The steel construction at 3.35 mm profile provides the structural integrity to stay tight even in high-vibration mechanical environments. Suitable for damp locations and applicable in residential, commercial, and industrial settings, it eliminates doubt at each knockout entry and keeps inspections moving forward.

At 2", you're running the kind of conduit that carries serious current — and the hardware securing it needs to match. This cULus-listed 2" steel locknut is built for the heavy end of commercial and industrial electrical work, where solid ground continuity at every large knockout entry is a code requirement, not an option. It threads directly onto 2" connectors and conduit fittings, gripping tight against the box wall to establish the robust metallic bond that inspectors look for on service entrances, motor feeds, and main distribution panels. The all-steel construction holds steady through vibration, temperature swings, and the mechanical stress that comes with large installations.