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A 1-1/4 inch steel conduit locknut with a zinc-plated finish, showing a hexagonal shape and internal threads

L.H. DOTTIE

L.H. DOTTIE LN125 Conduit Locknut 1-1/4 in Steel Zinc Plated

SKU CH-J5MY-NM26C

Threaded steel locknut with zinc plating secures 1-1/4 in conduit fittings

  • Product typeCable Management & Conduit
  • 1-1/4 in threaded locknut secures conduit fittings
  • Steel body with zinc plating resists corrosion
  • DOTTIE brand trusted by electrical professionals
  • Fits standard 1-1/4 in conduit threads
  • Direct-from-manufacturer supply ensures authentic parts

1-1/4 in Steel Conduit Locknut

The DOTTIE LN125 is a threaded steel locknut with a zinc-plated finish, designed to secure 1-1/4 inch conduit fittings in electrical installations. It suits electricians and maintenance crews who need a reliable fastening component for rigid or intermediate metal conduit systems.

Corrosion resistance and electrical continuity

Zinc plating protects the steel body from rust in damp or outdoor locations, preserving mechanical strength over time. The metal-to-metal contact maintains a continuous ground path through the conduit run without adding measurable resistance or heat.

Threaded engagement for secure fit

The internal threads match standard conduit dimensions, allowing the nut to lock fittings firmly against enclosure walls or couplings. This mechanical grip resists vibration loosening in industrial or vehicle-mounted equipment where movement is constant.

How it compares

Measured against everything we stock in Electrical Conduit & Fittings, at today’s prices. Recalculated every night.

Price $18.99
Cheaper than about 60% of the 1,290 comparable items (median $28.99).

Specifications

Product
Brand nameDOTTIE
Product typeCable Management & Conduit

Questions about this item

How do I install the 1-1/4 in threaded steel locknut onto conduit, and what step is often missed?

Thread the zinc-plated locknut onto the conduit until it seats firmly against the fitting, then tighten with a wrench; the step often missed is confirming the threads are fully engaged before final torque.

What maintenance or replacement will the LN125 locknut need over time?

The steel zinc-plated locknut requires no scheduled maintenance; inspect for corrosion or thread damage during conduit system checks and replace only if the plating is compromised or threads are stripped.

What limit appears first on the LN125 locknut under sustained vibration or thermal cycling?

The zinc plating on the steel locknut is the first limit; prolonged exposure to moisture or galvanic action can degrade the coating, leading to surface rust before the threads themselves fail.

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