Metric Nuts | McMaster-Carr

Filter by

System of Measurement

Thread Type

Metric Rounded Trapezoidal

Metric Trapezoidal

Thread Size

Thread Pitch

Nut Type

Externally Threaded

Tamper Resistant

Material

Stainless Steel

Height

Hex Nut Profile

Width

Finish

Aluminum Plated

Black Zinc Plated

Corrosion-Resistant Coated

Dry Film Lubricated

Hot-Dipped Galvanized

Magnesium Phosphate Coated

Neoprene Coated

Phosphate Coated

Fastener Strength Grade/Class

Thread Spacing

Thread Direction

Specifications Met

NEBS GR-63-CORE

Screw Size

Locking Type

Distorted Thread

Thread Fit

Metric Class 4H

Metric Class 4H5H

Metric Class 4H6H

Metric Class 5H

Metric Class 6g

Metric Class 6G

Metric Class 6h

Metric Class 6H

Metric Class 7H

Metric Interference Sk6

Metric Trapezoidal Class 7e

Metric Trapezoidal Class 7H

Metric Trapezoidal Class 8e

Unified Standard Class 2A

Unified Standard Class 2B

Fastener Strength Rating

Performance

Chemical Resistant

Corrosion Resistant

Electrically Insulating

Fastener Holding

Flame Retardant

High Temperature

Color

Drive Style

Drilled Spanner

External 12-Point

External Square

Length

RoHS

Compliant with Exemptions

REACH

DFARS Specialty Metals

Export Control Classification Number (ECCN)

How can we improve?

11,609 Products

Fastening and Joining

Hex Nuts

Handle most general fastening needs

Locknuts

Hold fasteners in place to prevent loosening from vibration

Flange Nuts

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

Coupling Nuts

Connect and extend threaded rods

Cap Nuts

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

Square Nuts

Flat sides won’t spin in channels and square holes

Easy to tighten and loosen by hand for making frequent adjustments

Panel Nuts

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

Socket Nuts

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

Slotted Round Nuts

Slotted Round Nuts

Fasten with a screwdriver in tight spots where there's no room for a wrench

Sealing Nuts

Prevent leaks and block out contaminants with a rubber seal

Tamper-Resistant Nuts

Tamper-Resistant Nuts

Hard to detach without special tools to prevent unwanted removal

Lug Nuts

Secure pneumatic wheels to axles

Split Nuts

Swivel to attach at any point on a threaded rod for quick installation

Press-Fit Nuts

Push into drilled or punched holes to add threads to thin panels

Weld Nuts

Weld to metal surfaces to add permanent threads

Rivet Nuts

Add threads to thin panels with access from only one side; also known as blind inserts

Threaded Inserts

Threaded Inserts

Create new threads or repair stripped threads

Clip-On Nuts

Slide onto the edge of thin panels to create a fastening point

Adhesive-Mount Nuts

Adhesive-Mount Nuts

Attach threads to material that’s too thin for a threaded insert

Snap-In Nuts

Push into square holes in thin materials to add bolts for aligning off-center parts

Screw-Mount Nuts

Screw-Mount Nuts

Mount with screws, rivets, and nails to add threads to a surface

Push Nuts

Press onto threads for a light duty hold that’s faster to install than typical nuts

Standoffs

Separate, position, or connect components in assemblies

Thread Adapters

Thread Adapters

Join threads of a different type, size, and gender

Binding Barrels

Binding Barrels

Create custom low-profile fasteners with binding barrel posts, caps, and screws

Tighten and loosen by hand without the need for tools

Studs

Press, weld, or screw in place to add a threaded fastening point

Fastener Assortments

Fastener Assortments

Keep a variety of common screws, nuts, and washers on hand

Lock Washers

Resist vibration to prevent fasteners from loosening

Retaining Rings

Retaining Rings

Hold components on a shaft

Sockets

Turn fasteners with an external drive style without slipping and damaging the drive

Socket Wrenches

Socket Wrenches

Apply torque to turn nuts, bolts, and other fasteners without rounding the heads

Press-Fit Nut Installation Tools

Press-Fit Nut Installation Tools

Everything you need to install press-fit nuts by hand

Push Nut Installation Tools

Push Nut Installation Tools

Press nuts and retaining rings onto threaded fasteners and shafts

Rivet Nut Tools

Rivet Nut Tools

Install rivet nuts

Nutdrivers

Tighten and loosen nuts and bolts

Screwdrivers

Tighten and loosen screws

Nutdriver Bits

Pair with nutdrivers to turn hex nuts and cap screws

Power Transmission

Bearing Nuts

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

Bearing Lock Washers

Bearing Lock Washers

Lock bearing nuts in place to prevent loosening due to vibration

Shock Absorber Mounting Nuts

Shock Absorber Mounting Nuts

Secure shock absorbers after threading them into mounting blocks

Precision Lead Screws and Nuts

Precision Lead Screws and Nuts

Pair with a motor for accurate starts and stops in automated motion and positioning applications

Lead Screws and Nuts

Lead Screws and Nuts

Move components in a straight line in clamping and heavy duty lifting and lowering applications

Ball Screws and Nuts

Ball Screws and Nuts

Provide smooth travel where high speeds, accurate positioning, and repeatable movement are required

Rod End Nuts

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

Lead Screw Collars

Lead Screw Collars

Position components and limit travel along a lead screw

Roller Screws and Nuts

Roller Screws and Nuts

Create more points of contact to handle much higher loads than ball screws and nuts of the same size

End Supports for Ball Screws and Precision Lead Screws

End Supports for Ball Screws and Precision Lead Screws

Brace and secure the ends of ball screws and precision lead screws

Building and Machinery Hardware

T-Slotted Framing Fasteners

T-Slotted Framing Fasteners

Secure brackets and other accessories to T-slotted rails

Locking-Slotted Framing and Fittings

Locking-Slotted Framing and Fittings

Make platforms, bases, and other structures that stand up to more movement than T-slotted framing

Strut Channel Framing and Fittings

Strut Channel Framing and Fittings

Secure fittings in the U-shaped channel to route conduit and pipe or build other structures

Clamp-On Framing and Fittings

Clamp-On Framing and Fittings

Two-piece fittings let you modify assembly stations, conveyors, and racks without dismantling them

Handle Nuts

Attach to threaded shafts to quickly turn the shafts by hand

Leveling Mount Inserts

Leveling Mount Inserts

Slip onto equipment and furniture to add threaded-stud leveling feet

Fabricating and Machining

T-Slot Nuts

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

T-Slot Bolts

Secure clamps and workpieces to machine tables with quicker setup than a T-slot nut and stud

T-Slot Covers

Snap into T-slots to block chips, debris, and small parts from falling in

T-Slot Cleaners

T-Slot Cleaners

Scrape debris out of machine table T-slots

Setup Studs

Secure setup clamps and fixtures to your machine table or assemble heavy machines

Fixture Clamps

Secure your workpiece to a fixture table so it won't move during machining

Fixture Kits

Everything needed to mount workpieces of different sizes to your machine table

Lathe Chuck Jaw Nuts

Lathe Chuck Jaw Nuts

Secure jaws to a CNC lathe chuck

Fluid Handling

Pipe and Pipe Fittings

Pipe and Pipe Fittings

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

Tube and Tube Fittings

Tube and Tube Fittings

Typically more flexible than pipe for carrying liquids and gases in short runs around equipment

Hose and Hose Fittings

Hose and Hose Fittings

Flexible and stronger than tubing; often used to convey liquids and gases under pressure

Electrical

Conduit and Conduit Fittings

Conduit and Conduit Fittings

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

Material Handling

Eye Nuts

Pair with bolts or threaded rod to lift and hang components

Loop Clamps

Hold pipe snug against the mounting surface to prevent movement that may cause breakage

Cable Holders

Mount to a surface to secure and route cable

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