Aluminum Shim Washers | McMaster-Carr

Filter by

Material

System of Measurement

DFARS Compliance

RoHS Compliance

Shape

Screw Size

Hardness

Length

Tensile Strength

REACH Compliance

Thickness

Magnetic Properties

Minimum Hardness

Sold As

Washer Type

Finish

Military Specifications Met

Passivation

Color

Specifications Met

Width

Forward

How can we improve?

1,563 Products

Shims

Ring Shims

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

Peel-Away Layered Ring Shims

These shims are made of layers of metal bonded with adhesive. Remove layers with a utility knife until you get the thickness you need.

Color-Coded Slotted Shims

These shims are color-coded by thickness for easy identification. The slot lets you insert, remove, and adjust the shims without disassembling your machinery.

Color-Coded Slotted Shim Sets

Keep slotted shims in a variety of thicknesses on hand with these sets, which are color-coded by thickness for easy identification. The slot lets you insert, remove, and adjust the shims without disassembling your machinery.

Washers

General Purpose Washers

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

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.

Mil. Spec. Washers

Choose these washers for their adherence to strict military standards for material and construction.

Oversized Washers

Compared to our general purpose washers, these have exaggerated diameters and/or thicknesses for covering oversized holes or for use as spacers and levelers.

SAE Washers

SAE washers generally have a smaller ID and OD than USS washers.

ASME Washers

Also known as Type B washers, ASME washers are available in narrower and wider diameters than SAE and USS washers.

USS Washers

USS washers generally have a larger ID and OD than SAE washers.

Washers for Blind Rivets

Also known as backup washers, these are for use with blind rivets for extra support when fastening into soft material.

Metric Countersunk Washers

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

Leveling Washers for I-Beams

Commonly called beveled washers, these are tapered to fit inside an I-beam's flange to provide a parallel bearing surface.

Split Lock Washers

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

Metal Sealing Washers

Also known as crush washers, these compress when tightened to form a tighter, more durable seal than rubber washers. They are commonly used to seal fluids such as oil and fuel.

Metal-Bonded Sealing Washers

Create a stronger seal than metal or rubber alone. These one-piece washers are metal for strength with a bonded rubber seal that creates a tight grip.

Unthreaded Spacers

Aluminum Unthreaded Spacers

Made of aluminum, these spacers are lightweight and mildly corrosion resistant.

Black-Anodized Aluminum Unthreaded Spacers

The anodized coating on these lightweight spacers provides increased abrasion resistance over uncoated aluminum.

Made-to-Order Unthreaded Spacers

Choose the OD, ID, length, and material and we will accommodate your unique spacer needs.

Unthreaded Spacer Stock

Cut stock to the length you need.

Fastener Assortments

Sealing Washer Assortments

Also known as crush washers, the washers in these assortments compress when tightened to form a tight, durable seal that prevents leaks.

Unthreaded Spacer Assortments

Have different sizes and lengths of spacers ready for a variety of jobs.

Aluminum Unthreaded Inserts for Plastic

These aluminum inserts are lightweight, nonmagnetic, and mildly corrosion resistant.