Thin Washers | McMaster-Carr

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System of Measurement

Screw Size

Material

Thickness

Washer Type

Finish

Corrosion-Resistant Coated

Zinc Yellow-Chromate Plated

Performance

Electrically Insulating

Color

Specifications Met

Hardness

DFARS Specialty Metals

Length

Washer Designation

RoHS

Compliant with Exemptions

Shaft Diameter

REACH

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

Yes

Export Control Classification Number (ECCN)

1C998

2B999

EAR99

Fastener Strength Grade/Class

Overall Height

ASME Designation

Width

Tooth Location

Internal and External

Maximum Temperature

8,341 Products

Fastening and Joining

Washers

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

3,462 products

Lock Washers

Resist vibration to prevent fasteners from loosening

1,272 products

Sealing Washers

Prevent fluids from leaking around fasteners

535 products

Insulating Washers

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

166 products

Cushioning Washers

Cushion joints to dampen vibration and protect them from wear

44 products

Finishing Washers

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

6 products

Shims

Align and space components on shafts, or level machinery, cabinets, and doors

2,733 products

Power Transmission

Bearing Lock Washers

Lock bearing nuts in place to prevent loosening due to vibration

103 products

Electrical Power, Networking, and Controlling

Electrical-Terminal Washers

Prevent wires from slipping out from under screw heads to keep electrical connections intact

6 products

Fabricating and Machining

Clamp Holding Washers

Replace worn washers on open-arm toggle clamps to keep holding screws in place

10 products

Material Handling

Tie-Down Washers

Angled sides align and hold tie-down straps

4 products