M18 Nuts | McMaster-Carr

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113 Products

Fastening and Joining

Hex Nuts

Handle most general fastening needs

43 products

Panel Nuts

Extremely thin for tight spots such as electrical panels; also known as dress nuts

1 product

Locknuts

Hold fasteners in place to prevent loosening from vibration

20 products

Flange Nuts

The flange distributes pressure, so you don't need a washer

3 products

Cap Nuts

Cover and protect threads while adding a finished look; also known as acorn nuts

1 product

Socket Nuts

Install in recessed holes and tight spots where a wrench won’t fit; also known as Allen nuts

1 product

Coupling Nuts

Connect and extend threaded rods

6 products

Thumb Nuts

Easy to tighten and loosen by hand for making frequent adjustments

1 product

Threaded Inserts

Create new threads or repair stripped threads

18 products

Power Transmission

Bearing Nuts

Hold bearings, bushings, pulleys, and gears in place on threaded shafts and spindles

5 products

Fabricating and Machining

T-Slot Nuts

Combine with setup studs or bolts to mount fixtures to machine tables

3 products

Material Handling

Eye Nuts

Pair with bolts or threaded rod to lift and hang components

2 products

Building and Machinery Hardware

Handle Nuts

Attach to threaded shafts to quickly turn the shafts by hand

2 products