M2.5 Washers | McMaster-Carr

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Screw Size

System of Measurement

Material

Stainless Steel

OD

Washer Type

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

ID

Finish

Specifications Met

Color

Washer Designation

General Purpose

Overall Height

ASME Designation

Length

Performance

Chemical Resistant

Corrosion Resistant

Electrically Insulating

Heavy Vibration Resistant

High Temperature

Impact Resistant

Moisture Resistant

Fastener Strength Grade/Class

RoHS

Compliant with Exemptions

Passivation

DFARS Specialty Metals

REACH

Export Control Classification Number (ECCN)

Shape

Maximum Temperature

Less than 250° F

250° F to 299° F

300° F to 499° F

500° F to 999° F

Tooth Location

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.)