1/2"-13 Nuts | McMaster-Carr

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System of Measurement

Thread Size

Material

Nut Type

Fastener Strength Grade/Class

Hex Nut Profile

Finish

Cadmium Yellow-Chromate Plated

Chrome Plated

Corrosion-Resistant Coated

Galvanized

Hot-Dipped Galvanized

Zinc Yellow-Chromate Plated

Width

Thread Direction

Height

Thread Type

Thread Spacing

Performance

Locking Type

Fastener Strength Rating

Specifications Met

Federal Specification

Flange Diameter

Thread Fit

ASME Interference Class 5

Metric Class 6g

Metric Class 6H

Unified Standard Class 1A

Unified Standard Class 1B

Unified Standard Class 2A

Unified Standard Class 2B

Unified Standard Class 3A

Unified Standard Class 3B

Screw Size

Length

Color

Threading

Threaded on Both Ends

DFARS Specialty Metals

RoHS

Compliant with Exemptions

Not Compliant

REACH

Compliant

Not Compliant

Export Control Classification Number (ECCN)

1,051 Products

Fastening and Joining

Hex Nuts

Handle most general fastening needs

111 products

Locknuts

Hold fasteners in place to prevent loosening from vibration

67 products

Flange Nuts

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

37 products

Coupling Nuts

Connect and extend threaded rods

29 products

Cap Nuts

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

27 products

Square Nuts

Flat sides won’t spin in channels and square holes

10 products

Thumb Nuts

Easy to tighten and loosen by hand for making frequent adjustments

19 products

Tamper-Resistant Nuts

Hard to detach without special tools to prevent unwanted removal

3 products

Push-Button Nuts

Disengage the threads to quickly slide along threaded rods

3 products

Socket Nuts

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

2 products

Split Nuts

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

2 products

Sealing Nuts

Prevent leaks and block out contaminants with a rubber seal

1 product

Weld Nuts

Weld to metal surfaces to add permanent threads

17 products

Screw-Mount Nuts

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

2 products

Rivet Nuts

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

9 products

Threaded Inserts

Create new threads or repair stripped threads

77 products

Press-Fit Nuts

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

4 products

Snap-In Nuts

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

1 product

Push Nuts

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

1 product

Thread Adapters

Join threads of a different type, size, and gender

301 products

Binding Barrels and Screws

Thread together for a low-profile fastener

14 products

Standoffs

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

35 products

Thumb Screws

Tighten and loosen by hand without the need for tools

8 products

Studs

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

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

31 products

Machine Handles

Arms give you extra leverage to secure and position jigs, fixtures, and other equipment

1 product

Handle Nuts

Attach to threaded shafts to quickly turn the shafts by hand

5 products

Leveling Mount Inserts

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

14 products

Fabricating and Machining

T-Slot Nuts

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

22 products

T-Slot Bolts

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

33 products

Setup Studs

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

64 products

Fixturing Kits

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

7 products

Fixturing Clamps

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

4 products

Lathe Chuck Jaw Nuts

Secure jaws to a CNC lathe chuck

1 product

Material Handling

Turnbuckles

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

12 products

Eye Nuts

Pair with bolts or threaded rod to lift and hang components

8 products