Coated Flat Washers | McMaster-Carr

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	Finish Finish

Black Oxide

Black Ultra-Corrosion-
Resistant Coated

Hot-Dipped Galvanized

Zinc Yellow-Chromate
Plated

Zinc-Aluminum Coated

Zinc-Flake Coated

	System of Measurement System of Measurement

Inch

Metric

	For Screw Size For Screw Size

	Washer Type Washer Type


Flat	Square

Clipped	Wedge Lock

Slotted	Tension Indicating

Split Lock

	Material Material

	OD OD

	ID ID

	Specifications Met Specifications Met

ASME

ASTM

DIN

ISO

Mil. Spec.

NAS

SAE

USS

	Fastener Strength Grade/Class Fastener Strength Grade/Class

	Thickness Thickness

0.005" to 0.024"

0.005" to 0.030"

0.010" to 0.013"

0.010" to 0.020"

0.010" to 0.030"

0.010" to 0.040"

0.012" to 0.018"

0.013" to 0.019"

0.013" to 0.020"

0.014" to 0.018"

0.014" to 0.033"

0.015" to 0.018"

0.016" to 0.025"

0.017" to 0.023"

0.017" to 0.028"

0.018" to 0.022"

0.018" to 0.032"

0.018" to 0.039"

0.019" to 0.021"

0.020" to 0.040"

0.022" to 0.028"

0.022" to 0.042"

0.024" to 0.032"

0.024" to 0.034"

0.024" to 0.038"

0.024" to 0.039"

0.025" to 0.039"

0.025" to 0.040"

0.025" to 0.045"

0.026" to 0.036"

0.027" to 0.033"

0.027" to 0.035"

0.027" to 0.048"

0.028" to 0.034"

0.028" to 0.035"

0.028" to 0.036"

0.028" to 0.046"

0.029" to 0.032"

0.029" to 0.034"

0.029" to 0.035"

0.029" to 0.039"

0.029" to 0.043"

0.030" to 0.034"

0.030" to 0.050"

0.030" to 0.070"

0.031" to 0.062"

0.033" to 0.047"

0.035" to 0.045"

0.036" to 0.045"

0.036" to 0.046"

0.036" to 0.065"

0.040" to 0.050"

0.040" to 0.060"

0.041" to 0.061"

0.042" to 0.051"

0.042" to 0.054"

0.043" to 0.051"

0.044" to 0.052"

0.045" to 0.055"

0.046" to 0.054"

0.048"

0.048" to 0.054"

0.049" to 0.068"

0.050" to 0.080"

0.051" to 0.070"

0.051" to 0.075"

0.051" to 0.080"

0.051" to 0.084"

0.051" to 0.104"

0.052" to 0.072"

0.053" to 0.073"

0.054" to 0.074"

0.055" to 0.065"

0.055" to 0.069"

0.055" to 0.072"

0.056" to 0.062"

0.056" to 0.071"

0.057" to 0.067"

0.057" to 0.069"

0.058" to 0.064"

0.058" to 0.068"

0.059" to 0.067"

0.059" to 0.069"

0.060" to 0.066"

0.060" to 0.080"

0.060" to 0.090"

0.064" to 0.080"

0.064" to 0.083"

0.064" to 0.094"

0.064" to 0.104"

0.065" to 0.075"

0.068" to 0.088"

0.071" to 0.091"

0.074" to 0.121"

0.075"

0.075" to 0.119"

0.075" to 0.202"

0.079" to 0.098"

0.080" to 0.099"

0.080" to 0.115"

0.082" to 0.098"

0.084" to 0.097"

0.086" to 0.132"

0.090" to 0.108"

0.090" to 0.110"

0.090" to 0.112"

0.090" to 0.114"

0.090" to 0.119"

0.090" to 0.160"

0.094" to 0.119"

0.097" to 0.112"

0.097" to 0.121"

0.097" to 0.177"

0.099" to 0.119"

0.100" to 0.180"

0.104" to 0.180"

0.105" to 0.130"

0.105" to 0.135"

0.108" to 0.160"

0.110" to 0.126"

0.110" to 0.130"

0.110" to 0.140"

0.112" to 0.128"

0.115" to 0.135"

0.120" to 0.130"

0.120" to 0.140"

0.122" to 0.146"

0.122" to 0.177"

0.125" to 0.145"

0.126" to 0.220"

0.126" to 0.240"

0.130" to 0.150"

0.134"

0.136" to 0.160"

0.136" to 0.161"

0.136" to 0.177"

0.136" to 0.192"

0.136" to 0.213"

0.142" to 0.230"

0.142" to 0.260"

0.146" to 0.166"

0.146" to 0.174"

0.146" to 0.177"

0.150" to 0.220"

0.153" to 0.213"

0.156" to 0.188"

0.158" to 0.240"

0.158" to 0.270"

0.158" to 0.280"

0.168" to 0.191"

0.168" to 0.192"

0.168" to 0.193"

0.170" to 0.190"

0.170" to 0.195"

0.170" to 0.200"

0.177" to 0.187"

0.178" to 0.196"

0.178" to 0.280"

0.190" to 0.208"

0.193" to 0.248"

0.198" to 0.223"

0.198" to 0.233"

0.199" to 0.224"

0.206" to 0.229"

0.210" to 0.280"

0.220" to 0.240"

0.220" to 0.280"

0.225" to 0.265"

0.228" to 0.310"

0.228" to 0.320"

0.230" to 0.255"

0.230" to 0.270"

0.234" to 0.266"

0.235" to 0.250"

0.235" to 0.264"

0.235" to 0.265"

0.240" to 0.260"

0.240" to 0.340"

0.249" to 0.327"

0.250" to 0.270"

0.261" to 0.286"

0.271" to 0.291"

0.293" to 0.318"

0.298" to 0.328"

0.302" to 0.332"

0.303" to 0.323"

0.355" to 0.380"

0.359" to 0.391"

0.360" to 0.390"

0.365" to 0.385"

0.428" to 0.448"

0.485" to 0.515"

0.2 to 0.4 mm

0.220 to 0.420mm

0.4 to 0.6 mm

0.6 to 1.0 mm

0.7 to 0.9 mm

0.9 to 1.1 mm

1.0 to 1.4 mm

1.4 to 1.8 mm

1.5 to 2.4 mm

1.8 to 2.2 mm

2.0 to 2.9 mm

2.1 to 2.5 mm

2.3 to 2.7 mm

2.5 to 3.4 mm

2.5 to 3.5 mm

2.600 to 4.600mm

2.700 to 3.3mm

2.700 to 4.000mm

3.0 to 3.9 mm

3.0 to 4.5 mm

3.1 to 4.600 mm

3.1 to 4.8 mm

3.200 to 5.500mm

3.4 to 4.600 mm

3.5 to 4.4 mm

3.600 to 6.000mm

3.7 to 4.3 mm

4.000 to 4.9mm

4.000 to 6.000mm

4.000 to 7.000mm

4.4 to 5.6 mm

4.5 to 5.4 mm

4.800 to 7.500mm

5.4 to 6.6 mm

5.970 to 6.730mm

6.0 to 6.9 mm

6.0 to 8.0 mm

7.0 to 7.9 mm

7.0 to 9.0 mm

9.0 to 11.0 mm

	Hardness Hardness

	ASME Designation ASME Designation

Narrow

Regular

Wide

	Width Width

	Container Type Container Type

Plastic Box

Plastic Cabinet

	Number of Pieces Number of Pieces

	Container Features Container Features

Compartmented

Lid Chart

	Container Width Container Width

	Container Depth Container Depth

	Container Length Container Length

8 1/4"

11"

17 7/8"

	Clipped Width Clipped Width

	Shape Shape

	Ring

	For Rivet Diameter For Rivet Diameter

	Drive Style Drive Style


Hex	Phillips	Slotted

About Washers

Washers

General Purpose Washers

Metric General Purpose Washers

Oversized Washers

Metric Oversized Washers

SAE Washers

Mil. Spec. Washers

USS Washers

ASME Washers for Soft Material

Washers with Material Certification

Washers for Structural Applications

Metric Washers for
Structural Applications

Tension-Indicating Washers
for Structural Applications

Washers for Blind Rivets

Square Washers

Square Washers for Blind Rivets

Clipped Washers

Oversized Clipped Washers

Easy-Install Slotted Washers

Wedge Lock Washers

Wedge Lock Washers

Wide-Rim Ring Shims

Wide-Rim Ring Shims

Fastener Assortments

Washer Assortments

SAE Washer Assortments

USS Washer Assortments

Oversized Washer Assortments

Fastener Maintenance Assortments

About Washers

Washers

General Purpose Washers

Metric General Purpose Washers

Oversized Washers

Metric Oversized Washers

SAE Washers

Mil. Spec. Washers

USS Washers

ASME Washers for Soft Material

Washers with Material Certification

Washers for Structural Applications

Metric Washers forStructural Applications

Tension-Indicating Washersfor Structural Applications

Washers for Blind Rivets

Square Washers

Square Washers for Blind Rivets

Clipped Washers

Oversized Clipped Washers

Easy-Install Slotted Washers

Wedge Lock Washers

Wedge Lock Washers

Wide-Rim Ring Shims

Wide-Rim Ring Shims

Fastener Assortments

Washer Assortments

SAE Washer Assortments

USS Washer Assortments

Oversized Washer Assortments

Fastener Maintenance Assortments

Metric Washers for
Structural Applications

Tension-Indicating Washers
for Structural Applications