3/8"-24 Couplings | McMaster-Carr

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Stainless Steel

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UN/UNF (SAE 45°)

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280 Products

Fastening and Joining

Coupling Nuts

Connect and extend threaded rods

Thread Adapters

Thread Adapters

Join threads of a different type, size, and gender

Hanger Bolts

Suspend pipe and other fixtures with wire or cable ties

Fluid Handling

Hose Fitting Nuts

Hose Fitting Nuts

Connect fittings and compressed-gas nipples to pressure regulators and torches

Hose Fittings

Create threaded, barbed, quick-disconnect, and other types of connections between lengths of hose

Tube Fittings

Make threaded, push to connect, barbed, and other types of connections between lengths of tube

Tube Fitting Nuts

Tube Fitting Nuts

Tighten to create a strong seal between tube and tube fittings

Air Chucks

Connect air hose to Schrader valves, which are common on tires and hydraulic systems

Power Transmission

Rod Alignment Couplers

Rod Alignment Couplers

Reduce wear on bearings and seals by flexing when the cylinder and load aren't precisely even

Building and Machinery Hardware

Control Cables

Weave around obstructions to operate valves, throttles, and other machinery from a distance

The quick brown fox jumped over the lazy dog. Pedestal (35" Ht. x 4" Wd. x 4" Dp.)