Stainless Steel Nuts | McMaster-Carr

Filter by

Material

Washer Material

400 Series Stainless Steel

System of Measurement

Thread Size

Nut Type

Hex Nut Profile

Height

Width

Thread Direction

Thread Type

Metric Rounded Trapezoidal

Performance

Thread Spacing

Thread Pitch

Locking Type

Specifications Met

Federal Specification

Finish

Molybdenum Disulfide Coated

RoHS

Compliant with Exemptions

Not Compliant

REACH

Compliant

Not Compliant

DFARS Specialty Metals

Tube Material

Export Control Classification Number (ECCN)

2B999

EAR99

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

For Use With

Body Material

For Use In

Nut Material

12,298 Products

Fastening and Joining

Hex Nuts

Handle most general fastening needs

962 products

Locknuts

Hold fasteners in place to prevent loosening from vibration

435 products

Flange Nuts

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

196 products

Cap Nuts

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

208 products

Thumb Nuts

Easy to tighten and loosen by hand for making frequent adjustments

259 products

Coupling Nuts

Connect and extend threaded rods

238 products

Square Nuts

Flat sides won’t spin in channels and square holes

46 products

Panel Nuts

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

57 products

Sealing Nuts

Prevent leaks and block out contaminants with a rubber seal

20 products

Socket Nuts

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

29 products

Tamper-Resistant Nuts

Hard to detach without special tools to prevent unwanted removal

39 products

Split Nuts

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

4 products

Press-Fit Nuts

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

284 products

Weld Nuts

Weld to metal surfaces to add permanent threads

108 products

Adhesive-Mount Nuts

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

119 products

Rivet Nuts

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

103 products

Threaded Inserts

Create new threads or repair stripped threads

2,367 products

Rivet-Mount Nuts

Add threads in hard-to-reach areas and materials that are too thin to be tapped

20 products

Snap-In Nuts

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

21 products

Push Nuts

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

1 product

Binding Barrels

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

568 products

Standoffs

Separate, position, or connect components in assemblies

1,629 products

Spacers

Unthreaded to create space between two surfaces or objects, often to align them

8 products

Thumb Screws

Tighten and loosen by hand without the need for tools

65 products

Studs

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

148 products

Hex Head Screws

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

101 products

Fastener Assortments

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

7 products

Captive Panel Screws

Secure panels and enclosures while still having access to them

67 products

Thread Adapters

Join threads of a different type, size, and gender

2,277 products

Lock Washers

Resist vibration to prevent fasteners from loosening

112 products

Retaining Rings

Hold components on a shaft

144 products

Threaded Rods

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

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

7 products

Rivet Tools

Install and remove blind, solid, hollow, and other types of rivets

1 product

Nutdrivers

Tighten and loosen nuts and bolts

7 products

Power Transmission

Lead Screws and Nuts

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

173 products

Bearing Nuts

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

116 products

Bearing Lock Washers

Lock bearing nuts in place to prevent loosening due to vibration

23 products

Precision Lead Screws

Pair with precision lead screw nuts for accurate starts and stops in your assembly

235 products

Precision Lead Screw Nut Flanges

Pair with precision lead screw nuts to make custom flange nuts that move items along lead screws

6 products

Shock Absorber Mounting Nuts

Secure shock absorbers after threading them into mounting blocks

5 products

Lead Screw Collars

Position components and limit travel along a lead screw

14 products

Rod End Nuts

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

3 products

Ball Screws and Nuts

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

20 products

Fluid Handling

Tube and Tube Fittings

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

141 products

Pipe and Pipe Fittings

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

40 products

Hose and Hose Fittings

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

7 products

Building and Machinery Hardware

Strut Channel Framing and Fittings

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

103 products

T-Slotted Framing and Fittings

The most versatile system, attach fittings along the continuous slots to build virtually anything

25 products

Handle Nuts

Attach to threaded shafts to quickly turn the shafts by hand

13 products

Protective Caps

Protect just about anything, including pipe, flanges, screws, and posts

4 products

Electrical Power, Networking, and Controlling

Conduit Locknuts

Secure threaded conduit fittings to knockouts in outlet boxes or enclosures

25 products

Electrical Enclosure Fasteners

Mount components to your enclosure without worrying about leaks

3 products

Terminal Covers

Block out dirt and corrosion to protect battery terminals

2 products

Material Handling

Turnbuckles

Twist the body or end fittings to adjust the length and tension of attached rope and chain

36 products

Eye Nuts

Pair with bolts or threaded rod to lift and hang components

29 products

Loop Clamps

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

222 products

Fabricating and Machining

T-Slot Nuts

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

47 products

T-Slot Bolts

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

9 products

Setup Studs

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

202 products

Fixture Clamps

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

12 products