McMaster-Carr

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	System of Measurement System of Measurement

Inch

Metric

	For Screw Size For Screw Size

	Material Material

Brass

Steel

	Finish Finish	Show

Zinc Plated

	Finish Finish	Hide

	Washer Type Washer Type


Flat	Split Lock

Metal Bonded	Tooth Lock

Countersunk	Square

Spring Lock	Cup for Oversized Holes

Slotted	Leveling for I- Beams

Angled Edge	Curved

Tab Lock	Square-Neck Bolt Lock

	OD OD

	ID ID

	Specifications Met Specifications Met

ASME

ASTM

DIN

ISO

Mil. Spec.

NAS

SAE

USS

	Thickness Thickness

0.005" to 0.030"

0.010" to 0.016"

0.012" to 0.018"

0.014" to 0.020"

0.015" to 0.019"

0.016" to 0.018"

0.016" to 0.022"

0.017"

0.017" to 0.021"

0.018"

0.018" to 0.023"

0.018" to 0.024"

0.02"

0.020" to 0.025"

0.020" to 0.027"

0.020" to 0.040"

0.022"

0.022" to 0.028"

0.023"

0.023" to 0.027"

0.023" to 0.028"

0.024"

0.025"

0.025" to 0.031"

0.025" to 0.040"

0.027" to 0.031"

0.027" to 0.035"

0.028"

0.028" to 0.034"

0.028" to 0.036"

0.030" to 0.065"

0.031" to 0.062"

0.032" to 0.040"

0.033" to 0.037"

0.034" to 0.044"

0.036" to 0.042"

0.036" to 0.044"

0.036" to 0.045"

0.036" to 0.065"

0.037"

0.037" to 0.041"

0.037" to 0.045"

0.039"

0.040"

0.040" to 0.050"

0.042"

0.042" to 0.050"

0.042" to 0.051"

0.042" to 0.052"

0.042" to 0.054"

0.043"

0.043" to 0.047"

0.043" to 0.051"

0.045"

0.045" to 0.055"

0.047"

0.047" to 0.053"

0.047" to 0.055"

0.048" to 0.052"

0.049" to 0.055"

0.050" to 0.070"

0.051" to 0.080"

0.052" to 0.058"

0.052" to 0.060"

0.054" to 0.070"

0.055"

0.055" to 0.065"

0.056"

0.056" to 0.062"

0.056" to 0.070"

0.056" to 0.071"

0.057"

0.057" to 0.067"

0.058" to 0.068"

0.059"

0.059" to 0.065"

0.059" to 0.067"

0.059" to 0.069"

0.060" to 0.064"

0.064" to 0.104"

0.073" to 0.083"

0.074" to 0.094"

0.074" to 0.121"

0.075" to 0.082"

0.076" to 0.080"

0.086" to 0.132"

0.089" to 0.099"

0.090" to 0.112"

0.095" to 0.101"

0.098" to 0.120"

0.104" to 0.114"

0.105"

0.105" to 0.135"

0.108" to 0.160"

0.109"

0.110" to 0.130"

0.110" to 0.140"

0.112" to 0.128"

0.115"

0.115" to 1/8"

0.115" to 0.135"

0.120" to 0.140"

0.122" to 0.177"

0.125" to 0.145"

0.127" to 0.141"

0.136" to 0.192"

0.146" to 0.162"

0.146" to 0.174"

0.153" to 0.213"

0.156"

0.163" to 0.181"

0.170" to 0.200"

0.182" to 0.202"

0.188"

0.193"

0.193" to 0.248"

0.200" to 0.222"

0.210" to 0.280"

0.219"

0.219" to 0.243"

0.220" to 0.280"

0.225" to 0.265"

0.234"

0.234" to 0.266"

0.235" to 0.250"

0.235" to 0.265"

0.238" to 0.263"

0.249" to 0.327"

0.360" to 0.390"

0.485" to 0.515"

0.2 to 0.4 mm

0.3 to 0.5 mm

0.4 to 0.6 mm

0.5 to 0.7 mm

0.6 to 0.8 mm

0.7 to 0.9 mm

0.8 to 1.0 mm

0.9 to 1.1 mm

0.9 to 1.2 mm

1.00 mm

1.0 to 1.4 mm

1.1 mm

1.1 to 1.3 mm

1.1 to 1.4 mm

1.20 mm

1.2 to 1.6 mm

1.3 mm

1.3 to 1.700 mm

1.400 to 1.700mm

1.400 to 1.8mm

1.50 mm

1.5 to 1.700 mm

1.7 mm

1.8 mm

1.8 to 2.2 mm

1.900 to 2.1mm

1.900 to 2.300mm

2.00 mm

2.0 to 2.4 mm

2.200 to 2.600mm

2.3 mm

2.3 to 2.7 mm

2.50 mm

2.7 mm

2.700 to 3.300mm

2.8 to 3.2 mm

3.00 mm

3.200 to 4.000mm

3.3 to 3.7 mm

3.4 mm

3.4 to 4.600 mm

3.7 to 4.3 mm

3.800mm

3.800 to 4.2mm

3.800 to 4.600mm

3.9 mm

4.0 mm

4.0 to 6.0 mm

4.4 to 5.6 mm

4.8 to 5.2 mm

5.4 to 6.6 mm

5.8 to 6.2 mm

6.0 to 8.0 mm

7.0 to 9.0 mm

9.0 to 11.0 mm

	Hardness Hardness

	Fastener Strength Grade/Class Fastener Strength Grade/Class

Grade 8

Class 8.8

	Tooth Location Tooth Location

	External
	Internal
	Internal/External

	Split Lock Washer Type Split Lock Washer Type


Standard	Curved

Wave

	ASME Designation ASME Designation

Narrow

Wide

Regular

	Container Type Container Type

Plastic Box

Metal Box

	Number of Pieces Number of Pieces

	Width Width

	Overall Length Overall Length

	Overall Height Overall Height

	Container Features Container Features

Compartmented

Lid Chart

	Seal Material Seal Material

Rubber

	Shape Shape


Ring	Round

Rectangle

	Container Length Container Length

1,860 Products

Washers

Lock Washers

These washers have a locking feature to resist loosening from vibration.

Sealing Washers

Prevent fluids from leaking around fasteners.

Leveling and Wave Washers

Compensate for tolerance variations and uneven surfaces.

Other Washers

Ring Shims

Precisely align, level, and adjust spacing on fasteners and shafts with these shims.

Unthreaded Spacers

Also known as clearance spacers.

Washer Assortments

Unthreaded Inserts

These inserts reinforce joints as fasteners are tightened.

External Retaining Rings

Nuts

Baskets for Parts Washing Tubs

Strut Channel Fasteners

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