Isolation Washers | McMaster-Carr

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Finishing Washers

Insulating Washers

System of Measurement

Screw Size

ID

OD

Thickness

0.001" to 0.003"

0.002" to 0.004"

0.004" to 0.006"

0.005" to 0.006"

0.008" to 0.012"

0.009" to 0.012"

0.010" to 0.020"

0.011" to 0.021"

0.012" to 0.018"

0.013" to 0.017"

0.014" to 0.016"

0.015" to 0.025"

0.016" to 0.024"

0.016" to 0.025"

0.017" to 0.023"

0.018" to 0.022"

0.018" to 0.023"

Material

Washer Type

Sleeve Height

Sleeve OD

Color

Performance

Chemical Resistant

Electrical Insulating

Flame Retardant

High Temperature

Impact Resistant

Low Temperature

Moisture Resistant

Overall Height

Maximum Temperature

Less than 200° F

200° F to 249° F

250° F to 499° F

500° F to 999° F

1,000° F or greater

Edge Type

Height

Hardness

Minimum Temperature

RoHS

REACH

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

Export Control Classification Number (ECCN)

DFARS Specialty Metals

Specifications Met

Sold As

Certification

Military Specification

Military Specification

How can we improve?

1,516 Products

Fastening and Joining

Insulating Washers

Insulating Washers

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

Washers

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

Finishing Washers

Finishing Washers

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

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