Insulating Flat Washers | McMaster-Carr

	Material Material

	System of Measurement System of Measurement

	For Screw Size For Screw Size

	ID ID

	OD OD

	Thickness Thickness

0.001" to 0.003"

0.002" to 0.004"

0.004" to 0.006"

0.005" to 0.006"

0.008" to 0.012"

0.009" to 0.012"

0.010" to 0.020"

0.012" to 0.018"

0.013" to 0.017"

0.014" to 0.016"

0.015" to 0.025"

0.016" to 0.025"

0.017" to 0.023"

0.018" to 0.022"

0.018" to 0.023"

0.020" to 0.030"

0.020" to 0.060"

0.022" to 0.028"

0.024" to 0.036"

0.024" to 0.038"

0.025" to 0.035"

0.025" to 0.040"

0.026" to 0.036"

0.026" to 0.038"

0.027" to 0.035"

0.027" to 0.037"

0.028" to 0.034"

0.028" to 0.036"

0.029" to 0.033"

0.030" to 0.050"

0.035" to 0.045"

0.036" to 0.045"

0.036" to 0.065"

0.037" to 0.043"

0.040" to 0.080"

0.041" to 0.051"

0.042" to 0.052"

0.045" to 0.055"

0.048" to 0.058"

0.051" to 0.080"

0.053" to 0.071"

0.054" to 0.070"

0.054" to 0.073"

0.054" to 0.074"

0.055" to 0.069"

0.055" to 0.070"

0.056" to 0.070"

0.056" to 0.071"

0.057" to 0.067"

0.060" to 0.067"

0.060" to 0.100"

0.062" to 0.067"

0.064" to 0.076"

0.064" to 0.104"

0.073" to 0.083"

0.074" to 0.086"

0.074" to 0.121"

0.083" to 0.103"

0.084" to 0.102"

0.084" to 0.104"

0.085" to 0.101"

0.087" to 0.099"

0.088" to 0.098"

0.089" to 0.099"

0.090" to 0.110"

0.090" to 0.112"

0.093" to 0.107"

0.108" to 0.150"

0.108" to 0.160"

0.112" to 0.138"

0.112" to 0.139"

0.113" to 0.137"

0.115" to 0.130"

0.115" to 0.135"

0.120" to 0.130"

0.146" to 0.174"

0.153" to 0.167"

0.175" to 0.201"

0.185" to 0.195"

0.193" to 0.203"

0.203" to 0.213"

0.226" to 0.236"

0.230" to 0.270"

0.235" to 0.245"

0.236" to 0.264"

0.298" to 0.308"

0.330" to 0.350"

0.475" to 0.525"

0.481" to 0.519"

0.5 to 1.100 mm

0.900 to 1.100mm

1.2 to 1.800 mm

1.400 to 1.800mm

1.800 to 2.200mm

1.9 to 2.200 mm

2.100 to 2.500mm

2.2 to 2.500 mm

	Color Color

	Off-White		Black
	Light Green		Beige
	Orange		Gray
	White		Red
	Brown		Clear

	Maximum Temperature Maximum Temperature

Less than 200° F

200° to 249° F

250° to 299° F

300° to 999° F

1,000° F or greater

	Minimum Temperature Minimum Temperature

	Hardness Hardness

	RoHS (Restriction of Hazardous Substances) RoHS (Restriction of Hazardous Substances)

	DFARS (Defense Acquisition Regulations Supplement) DFARS (Defense Acquisition Regulations Supplement)

DFARS Specialty Metals
COTS-Exempt

	REACH (Registration, Evaluation, Authorization and Restriction of Chemicals) REACH (Registration, Evaluation, Authorization and Restriction of Chemicals)

REACH Compliant

	Specifications Met Specifications Met

	Container Features Container Features

	Filler Material Filler Material

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Fasteners

Ceramic and Mica Washers

These washers withstand high temperatures and are good electrical insulators.

Plastic Washers

Plastic washers resist moisture, chemicals, and friction and have good electrical insulation properties.

Cushioning Washers

Cushion joints to damp vibration and protect from wear.

Washer Assortments

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Includes assortments with general purpose, oversized, USS, and SAE washers.

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