Metal Washers | McMaster-Carr

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System of Measurement

OD

ID

Material

Stainless Steel

Screw Size

Thickness

0.005" to 0.024"

0.005" to 0.030"

0.008" to 0.02"

Length

Shaft Diameter

Washer Type

Finish

Black Zinc Plated

Chromate Conversion Coated

Corrosion-Resistant Coated

Hot-Dipped Galvanized

Nickel Chrome Plated

Phosphate Coated

Zinc Flake Coated

Performance

Chemical Resistant

Corrosion Resistant

Finish-Your-Own

High Temperature

High Visibility

Low Temperature

Shape

DFARS Specialty Metals

RoHS

Compliant with Exemptions

REACH

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

Export Control Classification Number (ECCN)

Thread Size

Hardness

Specifications Met

SAE AMS-DTL-22499

Plain Bearing Type

Washer Designation

General Purpose

For Housing ID

Fastener Strength Grade/Class

ASTM Grade A325

ASTM Grade A490

Color

Width

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19,969 Products

Washers

General Purpose Washers

General Purpose Washers

Your go-to metal washer for every screw size

Oversized Washers

Oversized Washers

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

Mil. Spec. Washers

Mil. Spec. Washers

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

ASME Washers

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

SAE Washers

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

USS Washers

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

Undersized Washers

Undersized Washers

Pair with fasteners that have narrow heads, such as cheese and socket head screws

Easy-Install Slotted Washers

Easy-Install Slotted Washers

Slip under nuts and screws without having to disassemble them

Adhesive-Back Washers

Adhesive-Back Washers

Stick on your surface to prevent slipping while you fasten

Dished Washers

Cover oversized holes, such as the ends of pipe and tubes

Clipped Washers

Clipped Washers

Clipped on one side to fit in tight spots

Double-Clipped Washers

Double-Clipped Washers

Squeeze into tighter spots than single-clipped washers

Square Washers

Won't rotate as you fasten screws in slots and channels

Structural Washers

Structural Washers

Distribute pressure under structural screws and nuts in columns, joists, and I-beams

Reinforcing Sleeve Washers

Reinforcing Sleeve Washers

Keep soft materials from collapsing into the hole

Beveled Washers

Beveled Washers

The thickest washers we offer, designed for heavy duty wood construction

Magnetic Washers

Magnetic Washers

Stay in place on iron and steel surfaces during installation

Rectangular Washers

Rectangular Washers

Our narrowest washers to fit in thin channels, slots, and other tight spaces

Notched Washers

Notched Washers

Hammer nails into the notches to prevent rotation.

Oversized Washer Assortments

Oversized Washer Assortments

A collection of exaggerated sizes to cover large holes or to create gaps

Finish-Your-Own Washers

Finish-Your-Own Washers

Punch a hole to create a custom inner diameter for uncommon screw sizes

Tension-Indicating Structural Washers

Tension-Indicating Structural Washers

Change color when you apply the correct tension to prevent overtightening

Washers for Square-Neck Bolts

Washers for Square-Neck Bolts

The square hole fits snugly around carriage, plow, and elevator bolts

Washers for Blind Rivets

Washers for Blind Rivets

Sized to fit around blind rivet diameters

Curved Washers

Sit flush against rails, columns, and other structural tubes

General Purpose Washer Assortments

General Purpose Washer Assortments

A collection of common washer sizes to fit the broadest range of applications

SAE Washer Assortments

SAE Washer Assortments

A range of sizes that meet SAE standards—typically have smaller diameters than USS washers

Square Washers for Blind Rivets

Square Washers for Blind Rivets

Won't rotate as you fasten blind rivets in slots and channels

Perforated Washers

Perforated Washers

Plaster flows through to form a bond between the washer and wall

USS Washer Assortments

USS Washer Assortments

A collection of sizes that meet USS specifications—typically larger diameters than SAE washers

Washers for Foam Insulation

Washers for Foam Insulation

Prevent screws from crushing insulation board

Other Products

Sealing Washers

Sealing Washers

Prevent fluids from leaking around fasteners

Shims

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

Lock Washers

Resist vibration to prevent fasteners from loosening

Disc Springs

Maintain tension and separate components on shafts, under bolt heads, and at the ends of valves

Spacers

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

Thrust Bearings

Thrust Bearings

Support loads parallel to the shaft with plain, ball, or roller bearings

Thrust Roller Bearing Washers

Thrust Roller Bearing Washers

Adapt needle-roller thrust bearings for use on unhardened, unground surfaces

Flanged Sleeve Bearings

Flanged Sleeve Bearings

A sleeve and thrust bearing in one to support both parallel and perpendicular loads

Finishing Washers

Finishing Washers

Screw heads sit flush to prevent snagging and to create a neat, finished appearance

Sleeve Bearings

Sleeve Bearings

With no moving parts, the plainest type of bearing

Cross-Bracing Washers

Cross-Bracing Washers

Connect cross-bracing rods or cables to structural beams; also known as hillside washers

Clamp Holding Washers

Clamp Holding Washers

Replace worn washers on open-arm toggle clamps to keep holding screws in place

Bearing Lock Washers

Bearing Lock Washers

Lock bearing nuts in place to prevent loosening due to vibration

Tie-Down Washers

Tie-Down Washers

Angled sides align and hold tie-down straps

Leveling Washers

Leveling Washers

Curved or tapered to compensate for uneven mounting surfaces

Push Nuts

Press onto threads for a light duty hold that’s faster to install than typical nuts

Clamp-On Framing Fasteners

Clamp-On Framing Fasteners

Tighten to hold clamp-on framing in place

Die Bushings

Guide pins and punches in molds and stamping dies or reduce friction between ejector pins and plates

Tag Washers

Bolt onto surfaces to mount tag rings and ties

Fastener Assortments

Fastener Assortments

Keep a variety of common screws, nuts, and washers on hand

Electrical Enclosure Fasteners

Electrical Enclosure Fasteners

Mount components to your enclosure without worrying about leaks

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