Metric Class 4 Washers | McMaster-Carr

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

REACH Compliant

	Washer Type Washer Type


Spring Lock	Sleeve

Flat	Split Lock

Countersunk	Tab Lock

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

DFARS Specialty Metals
COTS-Exempt

DFARS Specialty Metals
Compliant

	Magnetic Properties Magnetic Properties

May Be Mildly Magnetic

Magnetic

Nonmagnetic

	Minimum Hardness Minimum Hardness

	Specifications Met Specifications Met

	Hardness Hardness

	Overall Height Overall Height

	Finish Finish

Zinc Plated

Blue Dyed

Hot-Dipped Galvanized

	For Shoulder Diameter For Shoulder Diameter

	Tab Width Tab Width

	For Bearing Nut Face Style For Bearing Nut Face Style


Chamfered	Stepped

	Tab Depth Tab Depth

	For Bearing Nut Specifications Met For Bearing Nut Specifications Met

DIN 981

DIN 1804

ANSI/ABMA 8.2

	For Bearing OD For Bearing OD

	Color Color

	White
	Black

Forward

How can we improve?

1,005 Products

Round Shims

Ring Shims

Precisely align, level, and adjust spacing on fasteners and shafts with these shims.

Shims for Shortening Screw Shoulders

Slide these shims under the screw head to shorten the shoulder length.

Shims for Lengthening Screw Shoulders

Spin these shims onto screw threads to extend the shoulder length.

Shims for Button Dies

Place these shims under sharpened dies to restore their original height and extend their life.

Shims for Ball Bearing Housings

Also called tolerance rings, these rings are for use in stamped, molded, or worn housings to form a tight hold on the bearings.

Lock Washers

Spring Lock Washers for Slotted Bearing Nuts

Designed for use with bearing nuts, these lock washers have a conical shape that presses like a spring against bearings, bushings, gears, and pulleys to hold them in place on your threaded shaft or spindle.

Belleville Spring Lock Washers for Socket Head Screws

These washers have smaller outside diameters than standard spring lock washers to fit neatly under socket head cap screws.

Metric Spring Lock Washers

The arched shape of these washers presses up against a bolt and down against a nut to prevent loosening from wear, vibration, or temperature changes.

Spring Lock Washers for Plastic Screws

Designed for use with plastic screws, these acetal washers are good electrical insulators. They are excellent for use under water and in rotating assemblies.

Metric Split Lock Washers

As a screw is tightened, these metric washers flatten to add tension to the joint, counteracting fatigue around the joint from small amounts of vibration.

Metric Tab Lock Washers

Bend the tab on these metric lock washers to prevent the fastener and washer from turning and loosening due to vibration.

Washers

Sleeve Washers for Soft Material

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

Metric Washers for Structural Applications

These thick washers are designed to support structural screws, studs, and nuts.

Metric Oversized Washers

Compared to our general purpose washers, these have exaggerated diameters and/or thicknesses. Use them to cover oversized holes, hold heavy fastening loads, or as spacers and levelers.

Metric General Purpose Washers

Use these metric washers to evenly distribute the load under bolt or screw heads and nuts when fastening. They can also act as spacers.

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