Left-Hand Threaded Nuts | McMaster-Carr

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Hex Nut Profile

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Zinc Yellow-Chromate Plated

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Unified Standard Class 2B

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Compliant with Exemptions

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Performance

Threading

Travel Distance per Turn

Number of Thread Starts

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1,221 Products

Fastening and Joining

Hex Nuts

Handle most general fastening needs

373 products

Locknuts

Hold fasteners in place to prevent loosening from vibration

5 products

Coupling Nuts

Connect and extend threaded rods

7 products

Thread Adapters

Join threads of a different type, size, and gender

66 products

Weld Nuts

Weld to metal surfaces to add permanent threads

64 products

Power Transmission

Lead Screw Nuts

Mate with lead screws to move components in a straight line

113 products

Lead Screws

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

92 products

Precision Lead Screws and Nuts

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

213 products

Precision Lead Screw Nut Flanges

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

18 products

Lead Screw Collars

Position components and limit travel along a lead screw

3 products

Ball Screw Nuts

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

7 products

Material Handling

Turnbuckles

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

240 products

Fluid Handling

Hose and Hose Fittings

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

19 products