Insulating Flat Washers | McMaster-Carr

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Washer Type

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Performance

Chemical Resistant

Electrically Insulating

High Temperature

Impact Resistant

Low Temperature

Moisture Resistant

Maximum Temperature

Less than 200° F

200° F to 249° F

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500° F to 999° F

1,000° F or greater

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DFARS Specialty Metals

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1,174 Products

Fastening and Joining

Washers

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

Insulating Washers

Insulating Washers

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

Cushioning Washers

Cushioning Washers

Cushion joints to dampen vibration and protect them from wear

Sealing Washers

Sealing Washers

Prevent fluids from leaking around fasteners

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