M2 Nuts | McMaster-Carr

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System of Measurement

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Material

Height

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Hex Nut Profile

Thread Type

Metric Rounded Trapezoidal

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Finish

Zinc Yellow-Chromate Plated

Thread Fit

Unified Standard Class 2B

Thread Spacing

Specifications Met

Fastener Strength Grade/Class

Performance

Fastener Strength Rating

Locking Type

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DFARS Specialty Metals

Sold As

RoHS

Compliant with Exemptions

Not Compliant

REACH

Compliant

Not Compliant

U.S.–Mexico–Canada Agreement (USMCA) Qualifying

Yes

Export Control Classification Number (ECCN)

EAR99

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152 Products

Fastening and Joining

Hex Nuts

Handle most general fastening needs

25 products

Locknuts

Hold fasteners in place to prevent loosening from vibration

3 products

Square Nuts

Flat sides won’t spin in channels and square holes

1 product

Coupling Nuts

Connect and extend threaded rods

8 products

Thumb Nuts

Easy to tighten and loosen by hand for making frequent adjustments

4 products

Socket Nuts

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

2 products

Press-Fit Nuts

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

19 products

Threaded Inserts

Create new threads or repair stripped threads

54 products

Standoffs

Separate, position, or connect components in assemblies

2 products

Thread Adapters

Join threads of a different type, size, and gender

1 product

Press-Fit Nut Installation Tools

Everything you need to install press-fit nuts by hand

1 product

Power Transmission

Precision Lead Screws and Nuts

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

32 products

Fabricating and Machining

Fixture Clamps

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

1 product