Elastic Stop Nuts | McMaster-Carr

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Cadmium Yellow-Chromate Plated

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Unified Standard Class 2B

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RoHS

Compliant with Exemptions

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EAR99

Military Specification

Flange Diameter

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935 Products

Locknuts

Nylon-Insert Locking About Nylon-Insert Locking

Nylon-Insert Locknuts

Versatile and economical—the most commonly used locknuts

468 products

Thin-Profile Nylon-Insert Locknuts

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

164 products

Heavy-Profile Nylon-Insert Locknuts

About 10% wider and taller than standard nuts to handle heavier loads

31 products

High-Profile Nylon-Insert Locknuts

Larger gripping area keeps wrenches from slipping off as you tighten

49 products

Thin-Heavy-Profile Nylon-Insert Locknuts

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

33 products

Mil. Spec. Nylon-Insert Locknuts

Meet strict U.S. military standards for material and construction

21 products

Mil. Spec. Thin-Profile Nylon-Insert Locknuts

Meet U.S. military standards and are half the height of standard nuts to fit in low-clearance spaces

17 products

Nylon-Insert Locknut Assortments

A range of sizes to fasten a variety of parts

2 products

Other Products

Flange Nuts

The flange distributes pressure, so you don't need a washer

80 products

Thumb Nuts

Easy to tighten and loosen by hand for making frequent adjustments

8 products

Cap Nuts

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

47 products

Press-Fit Nuts

Push into drilled or punched holes to add threads to thin panels

15 products