6-40 Nuts | McMaster-Carr

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System of Measurement

Thread Size

4-40 to 5/16"-32

Material

Stainless Steel

Width

Nut Type

Height

Thread Spacing

Thread Type

Hex Nut Profile

Locking Type

Thread Direction

Specifications Met

Finish

Dry Film Lubricated

Performance

Corrosion Resistant

Vibration Resistant

Export Control Classification Number (ECCN)

RoHS

Fastener Strength Rating

DFARS Specialty Metals

Thread Fit

Metric Class 6g

Metric Class 6H

Unified Standard Class 2A

Unified Standard Class 2B

Unified Standard Class 3B

Drive Style

Hex Length

Gender

Flange Diameter

REACH

Color

Cap Nut Profile

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Fastening and Joining

Hex Nuts

Handle most general fastening needs

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

Thread Adapters

Thread Adapters

Join threads of a different type, size, and gender

Threaded Inserts

Threaded Inserts

Create new threads or repair stripped threads

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