M18 Fasteners | McMaster-Carr

Filter by

System of Measurement

Thread Size

Thread Pitch

Material

Nut Type

Threading

Fastener Strength Grade/Class

Thread Spacing

Fastener Head Type

Thread Direction

Locking Type

Finish

Zinc Yellow-Chromate Plated

Thread Type

Width

Face Style

Hex Nut Profile

Specifications Met

Head Width

Height

Panel Nut Shape

DFARS Specialty Metals

REACH

U.S.–Mexico–Canada Agreement (USMCA) Qualifying

Yes

RoHS

Compliant

Compliant with Exemptions

Not Compliant

Export Control Classification Number (ECCN)

EAR99

Forward

How can we improve?

286 Products

Fastening and Joining

Hex Head Screws

Used with nuts to create a stronger joint than flat and rounded screws

83 products

Socket Head Screws

With a deeper drive than flat and rounded head screws, these withstand more torque for a tighter hold

24 products

Flat Head Screws

Fit in countersunk holes for a flush finish that won't snag on surrounding parts

4 products

Set Screws

Exert pressure at the tip to hold parts in place, unlike screws that hold material together with threads

2 products

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

Flange Nuts

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

3 products

Locknuts

Hold fasteners in place to prevent loosening from vibration

20 products

Coupling Nuts

Connect and extend threaded rods

6 products

Socket Nuts

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

1 product

Thumb Nuts

Easy to tighten and loosen by hand for making frequent adjustments

1 product

Cap Nuts

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

1 product

Threaded Rods

Anchor, connect, or hang components in a wide variety of applications

32 products

Quick-Release Pin Receptacles

Secure quick-release pins when you don’t have a through hole

1 product

Threaded Inserts

Create new threads or repair stripped threads

26 products

Threaded Insert Installation Tools

Install helical, key-locking, slotted-drive, and other threaded inserts

24 products

Power Transmission

Bearing Locknuts

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

2 products

Bearing Nuts

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

3 products

Fabricating and Machining

T-Slot Nuts

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

3 products

Material Handling

Eyebolts

Route rope through the loop or attach hooks and shackles for lifting

7 products

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