18-8 Stainless Steel Washers | McMaster-Carr

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System of Measurement

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Material

Garolite G-10/FR4

Silicon Carbide

Stainless Steel

1.4122 Stainless Steel

15-7 PH Stainless Steel

17-4 PH Stainless Steel

17-7 PH Stainless Steel

18-8 Stainless Steel

301 Stainless Steel

302 Stainless Steel

303 Stainless Steel

304 Stainless Steel

304-304L Stainless Steel

316 Stainless Steel

316-316L Stainless Steel

316L Stainless Steel

321 Stainless Steel

400 Series Stainless Steel

410 Stainless Steel

430 Stainless Steel

440C Stainless Steel

A286 Stainless Steel

Alloy 20 Stainless Steel

Bumax 88 Stainless Steel

Bumax 109 Stainless Steel

Stainless Steel

Washer Type

OD

ID

Thickness

0.005" to 0.024"

0.008" to 0.02"

0.010" to 0.013"

0.010" to 0.020"

0.010" to 0.030"

0.012" to 0.018"

Washer Designation

General Purpose

Finish

Thread Size

Specifications Met

Performance

Chemical Resistant

Corrosion Resistant

Finish-Your-Own

Heavy Vibration Resistant

High Temperature

High Visibility

Precision Adjust

Weather Resistant

Shaft Diameter

ASME Designation

Passivation

Color

Shape

Hardness

Overall Height

DFARS Specialty Metals

Length

Military Specification

Army-Navy Specification

Military Specification

RoHS

Compliant with Exemptions

Certification

UL Recognized Component

REACH

Export Control Classification Number (ECCN)

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5,007 Products

Washers

General Purpose Washers

General Purpose Washers

Your go-to metal washer for every screw size

Mil. Spec. Washers

Mil. Spec. Washers

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

Oversized Washers

Oversized Washers

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

SAE Washers

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

ASME Washers

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

Undersized Washers

Undersized Washers

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

Clipped Washers

Clipped Washers

Clipped on one side to fit in tight spots

USS Washers

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

Rectangular Washers

Rectangular Washers

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

Easy-Install Slotted Washers

Easy-Install Slotted Washers

Slip under nuts and screws without having to disassemble them

Washers for Square-Neck Bolts

Washers for Square-Neck Bolts

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

Square Washers

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

Double-Clipped Washers

Double-Clipped Washers

Squeeze into tighter spots than single-clipped washers

Finish-Your-Own Washers

Finish-Your-Own Washers

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

Washers for Blind Rivets

Washers for Blind Rivets

Sized to fit around blind rivet diameters

General Purpose Washer Assortments

General Purpose Washer Assortments

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

Oversized Washer Assortments

Oversized Washer Assortments

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

SAE Washer Assortments

SAE Washer Assortments

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

Other Products

Lock Washers

Resist vibration to prevent fasteners from loosening

Sealing Washers

Sealing Washers

Prevent fluids from leaking around fasteners

Leveling Washers

Leveling Washers

Curved or tapered to compensate for uneven mounting surfaces

Shims

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

Finishing Washers

Finishing Washers

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

Spacers

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

Retaining Rings

Retaining Rings

Hold components on a shaft

Fastener Assortments

Fastener Assortments

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

Captive Panel Screws

Captive Panel Screws

Secure panels and enclosures while still having access to them

Electrical Enclosure Fasteners

Electrical Enclosure Fasteners

Mount components to your enclosure without worrying about leaks

Push Nuts

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

Snap-In Nuts

Push into square holes in thin materials to add bolts for aligning off-center parts

Hex Head Screws

Hex Head Screws

Used with nuts to create a stronger joint than flat and rounded screws

Webbing Guides

Prevent webbing from twisting and use as anchor points; also known as footman's loops

Air Nozzles

Blow concentrated air for cleaning, drying, cooling, and ejecting parts

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