Threaded Rod Coupling Nuts | McMaster-Carr

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Material

Stainless Steel

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With Sight Hole

Threading

Partially Threaded

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Hot-Dipped Galvanized

Zinc Flake Coated

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Coupling Nut Profile

Performance

Corrosion Resistant

OD

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DFARS Specialty Metals

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Compliant with Exemptions

REACH

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Metric Class 6H

Unified Standard Class 2B

Specifications Met

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1,597 Products

Coupling Nuts

Coupling Nuts

The most commonly used coupling nuts

Round Coupling Nuts

Round Coupling Nuts

Fit in tight spots and create a finished appearance

Coupling Nuts with Sight Hole

Coupling Nuts with Sight Hole

Confirm that threads are fastened to the right depth

Left-Hand-Thread Coupling Nuts

Left-Hand-Thread Coupling Nuts

Tighten when turned to the left

Other Products

Thread Adapters

Thread Adapters

Join threads of a different type, size, and gender

Shaft Adapters

Increase or reduce your shaft's diameter to fit equipment, or replace damaged shaft ends

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