M2.5 Washers | McMaster-Carr

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System of Measurement

Screw Size

Material

Stainless Steel

OD

Washer Type

ID

Thickness

0.037" to 0.049"

0.2 mm to 0.5 mm

0.3 mm to 0.5 mm

0.4 mm to 0.6 mm

0.5 mm to 0.6 mm

0.5 mm to 0.7 mm

0.6 mm to 0.9 mm

0.6 mm to 1.0 mm

0.7 mm to 0.9 mm

0.8 mm to 1.2 mm

0.9 mm to 1.1 mm

Specifications Met

Finish

Color

Overall Height

ASME Designation

Washer Designation

General Purpose

Length

Passivation

RoHS

Compliant with Exemptions

Performance

Chemical Resistant

Corrosion Resistant

Electrically Insulating

Heavy Vibration Resistant

High Temperature

Impact Resistant

Moisture Resistant

Weather Resistant

Fastener Strength Grade/Class

DFARS Specialty Metals

Export Control Classification Number (ECCN)

Tooth Location

REACH

Maximum Temperature

Less than 250° F

250° F to 299° F

300° F to 499° F

500° F to 999° F

Shape

Minimum Temperature

-49° F to -1° F

Greater than 0° F

How can we improve?

110 Products

Fastening and Joining

Washers

Nearly every size and shape imaginable, from flat washers to clipped to curved

Lock Washers

Resist vibration to prevent fasteners from loosening

Insulating Washers

Insulating Washers

Isolate screws from electrical current and prevent corrosion from mating different metals

Sealing Washers

Sealing Washers

Prevent fluids from leaking around fasteners

Finishing Washers

Finishing Washers

Screw heads sit flush to prevent snagging and to create a neat, finished appearance

Spacers

Unthreaded to create space between two surfaces or objects, often to align them

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