Weld Washers | McMaster-Carr

	System of Measurement System of Measurement

Inch

Metric

	For Screw Size For Screw Size

	OD OD

	ID ID

	Material Material

	Finish Finish

	Washer Type Washer Type

Cup for Oversized Holes

	Thickness Thickness

	Overall Height Overall Height

	Countersink Angle Countersink Angle

82°

90°

100°

	Hardness Hardness

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

DFARS Specialty Metals
COTS-Exempt

DFARS Specialty Metals
Compliant

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

RoHS Compliant

RoHS Compliant with
Exemptions

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

REACH Compliant

	Sleeve OD Sleeve OD

	Color Color

	Off-White
	Black
	White

	Specifications Met Specifications Met

DIN

ASME

	Maximum Temperature Maximum Temperature

180° F

1700° F

	Minimum Temperature Minimum Temperature

-40° F

Not Rated

	Tab Width Tab Width

	Inside Depth Inside Depth

	Cup ID Cup ID

255 Products

About Washers

Cup Washers for Oversized Holes

Cover oversized holes and the ends of tubes and pipe with these cup-shaped washers.

Sleeve Washers for Soft Material

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

Countersunk Washers

Flat and oval head screws sit flush within these washers for a neat, finished appearance.

Electrical-Insulating Sleeve Washers

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

Lock Washers

These washers have a locking feature to resist loosening from vibration.