DIN 125A Flat Washers | McMaster-Carr

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System of Measurement

Screw Size

Material

Stainless Steel

Washer Type

Finish

Corrosion-Resistant Coated

Zinc Flake Coated

Zinc Yellow-Chromate Plated

ID

Thickness

0.1 mm to 0.4 mm

0.2 mm to 0.4 mm

0.3 mm to 0.4 mm

0.3 mm to 0.5 mm

0.4 mm to 0.6 mm

0.5 mm to 0.6 mm

0.7 mm to 0.9 mm

0.9 mm to 1.1 mm

1.4 mm to 1.5 mm

1.4 mm to 1.7 mm

1.4 mm to 1.8 mm

1.5 mm to 1.6 mm

1.5 mm to 1.7 mm

1.8 mm to 2.2 mm

1.9 mm to 2.0 mm

Washer Designation

General Purpose

Fastener Strength Grade/Class

Performance

Corrosion Resistant

Electrically Insulating

High Temperature

Impact Resistant

Hardness

Fastener Strength Rating

Color

RoHS

Compliant with Exemptions

REACH

DFARS Specialty Metals

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

Export Control Classification Number (ECCN)

Maximum Temperature

Less than 200° F

200° F to 249° F

250° F to 499° F

500° F to 999° F

Fastener Head Type

Certificate Type

Material Certificate with Traceable Lot Number

Minimum Temperature

-49° F to -1° F

Greater than 0° F

Adhesive Thickness

Drive Style

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333 Products

Washers

General Purpose Washers

General Purpose Washers

Your go-to metal washer for every screw size

Adhesive-Back Washers

Adhesive-Back Washers

Stick on your surface to prevent slipping while you fasten

Hard Fiber Washers

Hard Fiber Washers

Least likely to scratch delicate mounting surfaces

Plastic Washers

Plastic Washers

Lightweight, nonconductive, and naturally rust resistant

General Purpose Washer Assortments

General Purpose Washer Assortments

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

Other Products

Fastener Assortments

Fastener Assortments

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

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