Galvanized Steel Washers | McMaster-Carr

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System of Measurement

Screw Size

Finish

Chromate Conversion Coated

Corrosion-Resistant Coated

Nickel Chrome Plated

Phosphate Coated

Zinc Flake Coated

Zinc Yellow-Chromate Plated

Washer Type

Material

Low-Carbon Steel

OD

ID

Fastener Strength Grade/Class

ASTM Grade A325

ASTM Grade A490

Thickness

0.020" to 0.024"

0.036" to 0.065"

0.051" to 0.080"

0.054" to 0.070"

0.056" to 0.071"

0.064" to 0.104"

0.065" to 0.100"

0.074" to 0.121"

0.080" to 0.120"

0.086" to 0.116"

0.086" to 0.132"

0.090" to 0.112"

Specifications Met

Performance

Corrosion Resistant

Tension Indicating

Weather Resistant

Application

Washer Designation

Length

Thread Size

Width

Hardness

ASME Designation

Fastener Strength Rating

DFARS Specialty Metals

Color

RoHS

Compliant with Exemptions

Export Control Classification Number (ECCN)

REACH

Shape

Tension Indicated

How can we improve?

301 Products

Washers

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

USS Washers

Meet USS sizing standards and typically have larger diameters than SAE 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

Structural Washers

Structural Washers

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

Tension-Indicating Structural Washers

Tension-Indicating Structural Washers

Change color when you apply the correct tension to prevent overtightening

Square Washers

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

Washers for Foam Insulation

Washers for Foam Insulation

Prevent screws from crushing insulation board

Perforated Washers

Perforated Washers

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

Other Products

Sealing Washers

Sealing Washers

Prevent fluids from leaking around fasteners

Lock Washers

Resist vibration to prevent fasteners from loosening

Leveling Washers

Leveling Washers

Curved or tapered to compensate for uneven mounting surfaces

Strut Channel Washers

Strut Channel Washers

Pair with hex nuts to connect threaded rod to strut channel

Spacers

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

Push Nuts

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

Parts Baskets

Contain parts for cleaning and moving them in and out of washers

Tag Rings

Loop onto tags to attach them to lanyards, key rings, and other objects

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