Collar Washers | McMaster-Carr

	System of Measurement System of Measurement

Inch

Metric

	For Screw Size For Screw Size

	Overall Height Overall Height

	Material Material

	ID ID

	OD OD

	Sleeve OD Sleeve OD

	Thickness Thickness

	Color Color

	Off-White
	Black
	White

	Maximum Temperature Maximum Temperature

	Hardness Hardness

	DFARS (Defense Acquisition Regulations Supplement) DFARS (Defense Acquisition Regulations Supplement)

DFARS Specialty Metals
COTS-Exempt

DFARS Specialty Metals
Compliant

	Minimum Temperature Minimum Temperature

-40° F

Not Rated

	RoHS (Restriction of Hazardous Substances) RoHS (Restriction of Hazardous Substances)

RoHS Compliant

	REACH (Registration, Evaluation, Authorization and Restriction of Chemicals) REACH (Registration, Evaluation, Authorization and Restriction of Chemicals)

REACH Compliant

	Inside Depth Inside Depth

	Cup ID Cup ID

274 Products

About Washers

Electrical-Insulating Sleeve Washers

Also known as shoulder washers.

Extra-Tall Electrical-Insulating
Rolled-Collar Sleeve Washers

The extra-tall sleeve extends into holes to provide more protection than other rolled-collar washers.

Electrical-Insulating Rolled-Collar Sleeve Washers

As you tighten your screw, the rolled collar compresses under the head to create an insulating barrier between a screw shank and a mating surface.

Electrical-Insulating Cup Sleeve Washers

These washers have a flat bottom and high walls to protect metal screw heads from electrical current.

Sleeve Washers for Soft Material

Reinforce holes in soft material to keep them from collapsing around screws.

Sleeve Washer Assortments

Also known as shoulder and insulator washers, these nonmetal washers block electrical current and prevent corrosion from mating different types of metal.