Metal Lock Washers | McMaster-Carr

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	Material Material

Stainless Steel

Steel

Bronze

Aluminum

Nickel

	System of Measurement System of Measurement

Inch

Metric

	For Screw Size For Screw Size

	Finish Finish

Hot-Dipped Galvanized

Passivated

Yellow Zinc Plated

Zinc Plated

Zinc Yellow-Chromate Plated

Zinc-Aluminum Coated

Zinc-Flake Coated

	Washer Type Washer Type


Split Lock	Tooth Lock

Spring Lock	Wedge Lock

Countersunk	Tab Lock

Square-Neck Bolt Lock

	Thickness Thickness

0.010" to 0.013"

0.010" to 0.015"

0.010" to 0.016"

0.012" to 0.018"

0.014" to 0.018"

0.014" to 0.020"

0.015" to 0.019"

0.016" to 0.018"

0.016" to 0.021"

0.016" to 0.022"

0.017"

0.017" to 0.021"

0.0175"

0.018"

0.018" to 0.023"

0.018" to 0.024"

0.020" to 0.025"

0.020" to 0.027"

0.021"

0.022"

0.023"

0.023" to 0.027"

0.023" to 0.028"

0.025" to 0.031"

0.027" to 0.031"

0.028" to 0.034"

0.029" to 0.033"

0.032" to 0.040"

0.033" to 0.037"

0.034" to 0.044"

0.036" to 0.042"

0.037" to 0.041"

0.037" to 0.045"

0.038"

0.039"

0.040"

0.040" to 0.050"

0.041" to 0.053"

0.042"

0.042" to 0.050"

0.042" to 0.051"

0.043" to 0.047"

0.044" to 0.051"

0.047" to 0.053"

0.047" to 0.055"

0.048" to 0.052"

0.049" to 0.055"

0.05"

0.051"

0.052"

0.052" to 0.058"

0.052" to 0.060"

0.054" to 0.070"

0.057" to 0.069"

0.059" to 0.065"

0.059" to 0.067"

0.06"

0.060" to 0.064"

0.060" to 0.080"

0.062" to 0.077"

0.070" to 0.076"

0.070" to 0.090"

0.073" to 0.083"

0.074" to 0.082"

0.075" to 0.081"

0.075" to 0.082"

0.076" to 0.080"

0.078" to 0.097"

0.080" to 0.100"

0.090" to 0.110"

0.091" to 0.099"

0.093" to 0.103"

0.094" to 0.115"

0.095" to 0.101"

0.110" to 0.130"

0.120" to 0.140"

0.125" to 0.151"

0.127" to 0.141"

0.131" to 0.145"

0.146" to 0.162"

0.156" to 0.189"

0.163" to 0.181"

0.168" to 0.186"

0.170" to 0.190"

0.182" to 0.202"

0.185" to 0.205"

0.200" to 0.222"

0.219" to 0.243"

0.220" to 0.240"

0.238" to 0.263"

0.250" to 0.270"

0.260" to 0.280"

0.270" to 0.290"

0.340" to 0.360"

0.360" to 0.380"

0.460" to 0.480"

0.2 to 0.4 mm

0.2 to 0.5 mm

0.3 to 0.5 mm

0.4 to 0.5 mm

0.4 to 0.6 mm

0.41mm

0.46mm

0.5mm

0.5 to 0.6 mm

0.5 to 0.7 mm

0.53mm

0.6mm

0.6 to 0.7 mm

0.6 to 0.8 mm

0.61mm

0.7mm

0.7 to 0.8 mm

0.7 to 0.9 mm

0.75 mm

0.76mm

0.80 mm

0.8 to 0.9 mm

0.8 to 1.0 mm

0.9mm

0.9 to 1.0 mm

0.9 to 1.1 mm

0.9 to 1.2 mm

1.00 mm

1.0 to 1.2 mm

1.0 to 1.4 mm

1.1mm

1.1 to 1.3 mm

1.20 mm

1.2 to 1.5 mm

1.2 to 1.6 mm

1.25 mm

1.27mm

1.3 mm

1.3 to 1.6 mm

1.3 to 1.7 mm

1.4 to 1.6 mm

1.4 to 1.7 mm

1.5 to 1.7 mm

1.900 to 2.1mm

1.900 to 2.300mm

2.0 to 2.4 mm

2.200 to 2.600mm

2.3 to 2.7 mm

2.7 to 3.3 mm

2.8 to 3.2 mm

2.9 mm

3.00 mm

3.200 to 4.000mm

3.3 to 3.7 mm

3.4 mm

3.5 mm

3.8 mm

3.800 to 4.2mm

3.800 to 4.600mm

4.3 to 4.7 mm

4.800 to 5.2mm

5.8 to 6.2 mm

	ID ID

	OD OD

	Specifications Met Specifications Met

ASME

DIN

Mil. Spec.

NAS

	Split Lock Washer Type Split Lock Washer Type


Standard	Curved

Wave

	Hardness Hardness

	Tooth Location Tooth Location

	External
	Internal
	Internal/External

	For Shaft Diameter For Shaft Diameter

	Serration Location Serration Location

Top and Bottom

Top

	Overall Height Overall Height

	Working Load Working Load

Less than 1,000 lbs.

1,000 to 9,999 lbs.

10,000 to 19,999 lbs.

20,000 to 29,999 lbs.

30,000 lbs. or greater

	Disc Spring Type Disc Spring Type


Belleville	Wave

Curved	Finger

Notched

	Height Height

	Deflection @ Working Load Deflection @ Working Load

	For Hole Diameter For Hole Diameter

	Spring Lock Washer Shape Spring Lock Washer Shape


Conical	Curved

	Compressed Height @ Working Load Compressed Height @ Working Load

	Container Features Container Features

Compartmented

Lid Chart

Lock Washers

Split Lock Washers

Metric Split Lock Washers

Mil. Spec. Split Lock Washers

Split Lock Washers forSocket Head Screws

Metric Split Lock Washersfor Socket Head Screws

Oversized Split Lock Washers

External-Tooth Lock Washers

Metric External-Tooth Lock Washers

Mil. Spec. External-ToothLock Washers

Countersunk External-ToothLock Washers

Tight-Grip External-ToothLock Washers

Internal-Tooth Lock Washers

Metric Internal-Tooth Lock Washers

Mil. Spec. Internal-ToothLock Washers

Internal-Tooth LockWashers for Soft Material

Internal-/External-ToothLock Washers

Belleville Spring Lock Washersfor Socket Head Screws

Belleville Spring Lock Washers

Metric Spring Lock Washers

Spring Lock Washersfor Slotted Bearing Nuts

Wedge Lock Washers

Tab Lock Washers

Metric Tab Lock Washers

Square-Neck Bolt Lock Washers

Lock Washer Assortments

Split Lock Washer Assortments

Tooth Lock Washer Assortments

Disc Springs

Belleville Disc Springs

Corrosion-ResistantBelleville Disc Springs

Extreme-TemperatureBelleville Disc Springs

Belleville Disc Springsfor Flange Bolts

Mil. Spec. Belleville Disc Springs

Belleville Disc Springsfor Ball Bearings

Corrosion-ResistantWave Disc Springs

Wave Disc Springs

Stacked Wave Disc Springs

Corrosion-ResistantStacked Wave Disc Springs

Split Wave Disc Springs

Corrosion-ResistantCurved Disc Springs

Curved Disc Springs

Finger Disc Springs

Notched Disc Springs

Split Lock Washers for
Socket Head Screws

Metric Split Lock Washers
for Socket Head Screws

Mil. Spec. External-Tooth
Lock Washers

Countersunk External-Tooth
Lock Washers

Tight-Grip External-Tooth
Lock Washers

Mil. Spec. Internal-Tooth
Lock Washers

Internal-Tooth Lock
Washers for Soft Material

Internal-/External-Tooth
Lock Washers

Belleville Spring Lock Washers
for Socket Head Screws

Spring Lock Washers
for Slotted Bearing Nuts

Corrosion-Resistant
Belleville Disc Springs

Extreme-Temperature
Belleville Disc Springs

Belleville Disc Springs
for Flange Bolts

Belleville Disc Springs
for Ball Bearings

Corrosion-Resistant
Wave Disc Springs

Corrosion-Resistant
Stacked Wave Disc Springs

Corrosion-Resistant
Curved Disc Springs