M20 Washers | McMaster-Carr

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Screw Size

System of Measurement

Material

Stainless Steel

Washer Type

ID

OD

Thickness

0.094" to 0.156"

0.110" to 0.130"

0.120" to 0.140"

0.220" to 0.230"

Finish

Corrosion-Resistant Coated

Phosphate Coated

Zinc Flake Coated

Zinc Yellow-Chromate Plated

Specifications Met

Fastener Strength Grade/Class

Hardness

Washer Designation

General Purpose

Performance

Abrasion Resistant

Chemical Resistant

Corrosion Resistant

Electrically Insulating

High Temperature

Impact Resistant

Moisture Resistant

Precision Adjust

Color

ASME Designation

Fastener Strength Rating

Length

DFARS Specialty Metals

REACH

RoHS

Compliant with Exemptions

Export Control Classification Number (ECCN)

Overall Height

Maximum Temperature

Less than 250° F

250° F to 299° F

300° F to 499° F

500° F to 999° F

1,000° F or greater

Width

Shape

Tooth Location

How can we improve?

152 Products

Fastening and Joining

Washers

Nearly every size and shape imaginable, from flat washers to clipped to curved

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

Cushioning Washers

Cushioning Washers

Cushion joints to dampen vibration and protect them from wear

Shims

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

Power Transmission

Bearing Lock Washers

Bearing Lock Washers

Lock bearing nuts in place to prevent loosening due to vibration

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