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Hexagonal locknut, polished 316 stainless steel, 1-1/2 inch trade size

CALBRITE

CALBRITE S61500LN00 IMC Locknut 1-1/2 in 316 Stainless Steel

SKU CH-BQAP-T10DD

A 316 stainless-steel locknut for threaded RMC and IMC conduit, 1-1/2 in trade size with 1.81 in inside diameter

  • Product typeCable Management & Conduit
  • 316 stainless steel resists corrosion in harsh environments
  • UL514B listed for code-compliant installations
  • Fits 1-1/2 in RMC and IMC threaded conduit
  • Polished finish provides smooth, professional appearance
  • Lightweight at 0.08 lb for easy handling

CALBRITE IMC Locknut 1-1/2 in

This locknut is a threaded fitting made from 316 stainless steel for use with RMC and IMC conduit. It suits electrical installations that require a secure connection in corrosive environments. The polished finish adds resistance to surface degradation. Buyers needing a non-metallic or plastic locking ring will not find it here.

Polished 316 stainless steel finish

The polished surface improves corrosion resistance compared to uncoated or zinc-plated alternatives. This helps maintain the integrity of the conduit system in harsh conditions. The material choice supports long-term reliability where moisture or chemicals are present. Installations requiring a specific coating or colour coding are not addressed by this item.

Check conduit trade size and standards

Verify that your conduit is RMC or IMC with a 1 1/2 in trade size before ordering. The inside diameter measures 1.81 in and the overall length is 2 15/32 in. The fitting carries UL514B certification under file E308159. Projects specifying a different standard or thread type will need a separate component.

How it compares

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

Price $16.99
Cheaper than about 73% of the 1,411 comparable items (median $39.99).

Specifications

Product
Brand nameCALBRITE
Product typeCable Management & Conduit

Questions about this item

Will the 316 stainless steel locknut need replacement due to corrosion in outdoor conduit runs?

The 316 stainless steel construction resists corrosion in typical outdoor and industrial environments, reducing the likelihood of replacement compared to lower-grade steel fittings.

What is the first limit reached when this locknut is used on conduit carrying maximum fill continuously?

The 1.81 in inside diameter and UL514B listing define the mechanical and thermal boundary for the 1-1/2 in trade size conduit it secures.

Does the polished 316 stainless finish affect heat dissipation or noise when the conduit runs all day?

The locknut adds 0.08 lb and has no moving parts, so it contributes negligible heat and zero audible noise during continuous operation.

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