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Box of fifty zinc-plated steel coupling nuts, hexagonal, silver finish

L.H. DOTTIE

L.H. DOTTIE RRC32 Coupling Nut 1/2''-3/8'' Steel Zinc 50 PK

SKU CH-GTSY-P20P8

Steel zinc-plated coupling nut joins 1/2'' and 3/8'' threads, supplied in a 50-piece pack

  • Product typeNuts
  • Connects 1/2-inch and 3/8-inch threads
  • Zinc-plated steel resists corrosion
  • 1-1/4 inch length fits tight spaces
  • 50-piece pack covers large projects
  • DOTTIE brand trusted by professionals

DOTTIE RRC32 coupling nut for mixed thread sizes

This DOTTIE RRC32 coupling nut joins a 1/2 inch thread to a 3/8 inch thread in a single steel component. Zinc plating protects the surface against corrosion during installation and service. The pack contains 50 pieces for volume use in maintenance or assembly tasks.

Zinc-plated steel limits in corrosive

Zinc plating resists rust in dry or mildly damp environments but will degrade faster in salt spray, acid exposure or constant immersion. Steel threads can strip if torque exceeds the material yield point, so the nut is unsuitable for critical structural joints or dynamic shock loads.

Verify thread pitch and length before ordering

Confirm that both mating parts use compatible thread pitches for 1/2 inch and 3/8 inch diameters, as the nut does not adapt mismatched pitches. Ensure the 1-1/4 inch overall length provides enough engagement depth for your specific fasteners without bottoming out.

How it compares

Measured against everything we stock in General Hardware & Accessories, at today’s prices. Recalculated every night.

Price $100.99
Pricier than about 85% of the 2,607 comparable items (median $18.99).

Specifications

Product
Brand nameDOTTIE
Product typeNuts

Questions about this item

Should I choose the 50-pack or look for a smaller quantity?

The product is only offered as a 50-pack, so that is the quantity you receive.

What does the 1/2''-3/8'' thread size mean when I install these coupling nuts?

It means each nut connects a 1/2-inch threaded rod to a 3/8-inch threaded rod or stud.

Does the zinc-plated steel limit where I can use these coupling nuts?

Zinc-plated steel resists corrosion in dry or indoor environments but is not rated for prolonged outdoor or wet exposure.

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