Black Oxide Jam Nuts | McMaster-Carr

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Cadmium Yellow-Chromate Plated

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Unified Standard Class 2B

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228 Products

Hex Nuts

Thin Profile About Thin Profile

Thin-Profile Hex Nuts

About half the height of standard nuts to fit in spaces with low clearance

58 products

Left-Hand-Thread Thin-Profile Hex Nuts

Tighten when turned to the left to prevent counterclockwise-moving parts from loosening

42 products

Thin-Heavy Profile About Thin-Heavy Profile

Thin-Heavy-Profile Hex Nuts

Fit in low-clearance spaces and handle heavier loads than standard nuts

9 products

Other Products

Locknuts

Hold fasteners in place to prevent loosening from vibration

27 products

Thumb Nuts

Easy to tighten and loosen by hand for making frequent adjustments

61 products

Panel Nuts

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

27 products

Square Nuts

Flat sides won’t spin in channels and square holes

4 products