3/8"-24 Nuts | McMaster-Carr

Filter by

System of Measurement

Thread Size

Material

Nut Type

Hex Nut Profile

Fastener Strength Grade/Class

Width

Finish

Height

Thread Direction

Thread Type

Thread Spacing

Locking Type

Performance

Fastener Strength Rating

Specifications Met

Length

Thread Fit

Drive Style

Flange Diameter

RoHS Compliance

DFARS Compliance

REACH Compliance

How can we improve?

543 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

Socket Nuts

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

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

Weld Nuts

Weld to metal surfaces to add permanent threads

Push Nuts

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

Rivet-Mount Nuts

Rivet-Mount Nuts

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

Press-Fit Nuts

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

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

Thread Adapters

Thread Adapters

Join threads of a different type, size, and gender

Rivet Nut Tools

Rivet Nut Tools

Install rivet nuts

Fluid Handling

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

Hose Crimpers

Crimp ferrules onto hose to secure fittings

Building and Machinery Hardware

Handle Nuts

Attach to threaded shafts to quickly turn the shafts by hand

Material Handling

Turnbuckles

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

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