4-40 Locknuts | McMaster-Carr

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Nut Type

Material

Grade 5 Titanium

Stainless Steel

Locking Type

Distorted Thread

Hex Nut Profile

Height

Width

Finish

Black Zinc Plated

Cadmium Yellow-Chromate Plated

Thread Type

Performance

Corrosion Resistant

High Temperature

Vibration Resistant

Washer Material

400 Series Stainless Steel

Specifications Met

Thread Direction

System of Measurement

Military Specification

Thread Spacing

Thread Fit

Unified Standard Class 2B

Unified Standard Class 3B

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Flange Diameter

Fastener Strength Rating

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Washer Type

DFARS Specialty Metals

Export Control Classification Number (ECCN)

REACH

RoHS

Compliant with Exemptions

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34 Products

Fastening and Joining

Locknuts

Hold fasteners in place to prevent loosening from vibration

Flange Nuts

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

Cap Nuts

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

Press-Fit Nuts

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

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