Threaded Rod Connectors | McMaster-Carr

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Material

Stainless Steel

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With Sight Hole

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Threading

Partially Threaded

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Hot-Dipped Galvanized

Zinc Flake Coated

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OD

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Metric Class 6H

Unified Standard Class 2B

DFARS Specialty Metals

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Compliant with Exemptions

REACH

Performance

Corrosion Resistant

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Coupling Nut Profile

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1,819 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

Lead Screw Nuts

Lead Screw Nuts

Mate with lead screws to move components in a straight line

Shaft Adapters

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

Hex Nuts

Handle most general fastening needs

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