Round Nuts | McMaster-Carr

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4,748 Products

Fastening and Joining

Easy to tighten and loosen by hand for making frequent adjustments

Coupling Nuts

Connect and extend threaded rods

Slotted Round Nuts

Slotted Round Nuts

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

Socket Nuts

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

Cap Nuts

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

Panel Nuts

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

Push-Button Nuts

Push-Button Nuts

Disengage the threads to quickly slide along threaded rods

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

Adhesive-Mount Nuts

Adhesive-Mount Nuts

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

Rivet Nuts

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

Push Nuts

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

Screw-Mount Nuts

Screw-Mount Nuts

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

Snap-In Nuts

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

Retaining Rings

Retaining Rings

Hold components on a shaft

Power Transmission

Lead Screw Nuts

Lead Screw Nuts

Mate with lead screws to move components in a straight line

Lead Screw Nut Flanges

Lead Screw Nut Flanges

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

Lead Screws

Pair with lead screw nuts to move components in a straight line

Ball Screws and Nuts

Ball Screws and Nuts

Internal ball bearings roll on screws for low friction when moving components at high speeds

Roller Screws and Nuts

Roller Screws and Nuts

More contact points to move heavier loads than ball and lead screw assemblies

Electrical

Conduit and Conduit Fittings

Conduit and Conduit Fittings

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

Facility and Grounds Maintenance

Sink Drain Fittings

Sink Drain Fittings

Connect tailpieces, traps, and extension tubing to drains

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