Coupling Nuts | McMaster-Carr

Filter by

System of Measurement

Thread Size

Length

Material

Nut Type

Threading

Width

Finish

Gender

Thread Direction

Fastener Strength Grade/Class

Thread Type

Hex Size

Hex Length

Thread Length

Height

Thread Spacing

OD

Fastener Strength Rating

Shape

Coupling Nut Profile

Thread Pitch

RoHS

DFARS Specialty Metals

REACH

Export Control Classification Number (ECCN)

How can we improve?

11,051 Products

Coupling Nuts

Coupling Nuts

The most commonly used coupling nuts

Left-Hand-Thread Coupling Nuts

Left-Hand-Thread Coupling Nuts

Tighten when turned to the left

Coupling Nuts with Sight Hole

Coupling Nuts with Sight Hole

Confirm that threads are fastened to the right depth

Round Coupling Nuts

Round Coupling Nuts

Fit in tight spots and create a finished appearance

Other Products

Standoffs

Threaded to separate or connect parts as well as position components in assemblies

Thread Adapters

Thread Adapters

Join threads of a different type, size, and gender

Lead Screw Nuts

Lead Screw Nuts

Mate with lead screws to move components in a straight line

Connecting Rods

Connecting Rods

Use with rod ends and swivel joints to link components in push/pull assemblies

Tube Fitting Nuts

Tube Fitting Nuts

Tighten to create a strong seal between tube and tube fittings

Hose Fitting Nuts

Hose Fitting Nuts

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

Pipe and Pipe Fittings

Pipe and Pipe Fittings

Generally thicker and more rigid than tubing for distributing liquids and gases through your facility

Rod End Nuts

Attach to rods, pipe, and tubing to make pivot and hinge points

Conduit and Conduit Fittings

Conduit and Conduit Fittings

Protect wiring from impact and the environment in runs indoors, outdoors, and underground

Sink Drain Fittings

Sink Drain Fittings

Connect tailpieces, traps, and extension tubing to drains

Hose Fittings

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

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