M2 Nuts | McMaster-Carr

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System of Measurement

Thread Size

4-40 to 5/16"-32

Nut Type

Externally Threaded

Material

Stainless Steel

Height

Thread Pitch

Hex Nut Profile

Thread Fit

Metric Class 4H

Metric Class 4H6H

Metric Class 6g

Metric Class 6G

Metric Class 6H

Unified Standard Class 2B

Width

Thread Type

Metric Rounded Trapezoidal

Finish

Zinc Yellow-Chromate Plated

Length

Thread Spacing

Fastener Strength Grade/Class

Specifications Met

Performance

Chemical Resistant

Corrosion Resistant

Flame Retardant

High Temperature

Impact Resistant

Noncontaminating

Vibration Resistant

Locking Type

Thread Direction

Fastener Strength Rating

DFARS Specialty Metals

Color

Drive Style

External Square

Head OD

REACH

RoHS

Compliant with Exemptions

Export Control Classification Number (ECCN)

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151 Products

Fastening and Joining

Hex Nuts

Handle most general fastening needs

Locknuts

Hold fasteners in place to prevent loosening from vibration

Square Nuts

Flat sides won’t spin in channels and square holes

Coupling Nuts

Connect and extend threaded rods

Easy to tighten and loosen by hand for making frequent adjustments

Socket Nuts

Install in recessed holes and tight spots where a wrench won’t fit; also known as Allen nuts

Press-Fit Nuts

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

Threaded Inserts

Threaded Inserts

Create new threads or repair stripped threads

Standoffs

Separate, position, or connect components in assemblies

Thread Adapters

Thread Adapters

Join threads of a different type, size, and gender

Press-Fit Nut Installation Tools

Press-Fit Nut Installation Tools

Everything you need to install press-fit nuts by hand

Power Transmission

Precision Lead Screws and Nuts

Precision Lead Screws and Nuts

Pair with a motor for accurate starts and stops in automated motion and positioning applications

Fabricating and Machining

Fixture Clamps

Secure your workpiece to a fixture table so it won't move during machining

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