Isolation Washers | McMaster-Carr

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System of Measurement

Screw Size

ID

OD

Material

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"

Washer Type

Color

Sleeve OD

Sleeve Height

Overall Height

Performance

Chemical Resistant

Electrically Insulating

High Temperature

Impact Resistant

Low Temperature

Moisture Resistant

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

RoHS

Hardness

REACH

DFARS Specialty Metals

Export Control Classification Number (ECCN)

Minimum Temperature

Edge Type

Specifications Met

Sold As

Military Specification

Countersink Angle

Certification

Construction

How can we improve?

1,519 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.)