Lightweight Washers | McMaster-Carr

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System of Measurement

Screw Size

OD

ID

Material

Thickness

0.002" to 0.004"

0.005" to 0.006"

0.008" to 0.012"

0.009" to 0.012"

0.010" to 0.020"

0.011" to 0.021"

0.012" to 0.018"

0.013" to 0.017"

Washer Type

Color

Performance

Abrasion Resistant

Adjustable Flow

Adjustable Length

Aggressive Cleaning

Chemical Resistant

Corrosion Resistant

Create-Your-Own

Crush Resistant

Electrically Insulating

Finish-Your-Own

Flame Retardant

High Efficiency

High Temperature

High Visibility

Impact Resistant

Low Temperature

Metal Detectable

Moisture Resistant

Precision Adjust

Squeeze to Open

Static Eliminating

Stress Resistant

Tension Indicating

Tight Clearance

Vibration Damping

Vibration Resistant

Water Resistant

Weather Resistant

X-Ray Detectable

Length

Finish

Zinc Yellow-Chromate Plated

Maximum Temperature

Less than 250° F

250° F to 299° F

300° F to 499° F

500° F to 999° F

Thread Size

Hardness

Washer Designation

General Purpose

RoHS

Compliant with Exemptions

REACH

Specifications Met

SAE AMS-DTL-22499

Shape

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

Export Control Classification Number (ECCN)

DFARS Specialty Metals

Minimum Temperature

-250° F or less

-249° F to -100° F

-99° F to -50° F

-49° F to -1° F

Greater than 0° F

Overall Height

Sold As

Bristle Material

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4,414 Products

Washers

Plastic Washers

Plastic Washers

Lightweight, nonconductive, and naturally rust resistant

General Purpose Washers

General Purpose Washers

Your go-to metal washer for every screw size

Self-Retaining Washers

Self-Retaining Washers

Assemble screws and washers in advance to save time

Mil. Spec. Washers

Mil. Spec. Washers

Adhere to U.S. military standards for material and construction

Mil. Spec. Plastic Washers

Mil. Spec. Plastic Washers

Meet U.S. military standards and are lightweight, nonconductive, and naturally rust resistant

Hard Fiber Washers

Hard Fiber Washers

Least likely to scratch delicate mounting surfaces

Fiberglass Washers

Fiberglass Washers

Best strength-to-weight ratio of all our nonmetal washers

SAE Washers

Meet SAE sizing standards and typically have smaller diameters than USS washers

Oversized Washers

Oversized Washers

Exaggerated diameters or thicknesses to cover large holes or to create gaps

ASME Washers

Meet ASME standards and come in regular, narrow, and wide diameters

Washers for Foam Insulation

Washers for Foam Insulation

Prevent screws from crushing insulation board

USS Washers

Meet USS sizing standards and typically have larger diameters than SAE washers

Washers for Blind Rivets

Washers for Blind Rivets

Sized to fit around blind rivet diameters

Other Products

Spacers

Unthreaded to create space between two surfaces or objects, often to align them

Shims

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

Lock Washers

Resist vibration to prevent fasteners from loosening

Strut Channel Framing and Fittings

Strut Channel Framing and Fittings

Secure fittings in the U-shaped channel to route conduit and pipe or build other structures

Grommets

Protect wire, cable, and cords from holes with sharp or rough edges

Brooms

Sweep up dust, dirt, and other debris

The quick brown fox jumped over the lazy dog. Pedestal (35" Ht. x 4" Wd. x 4" Dp.)