Zinc-Plated Steel Washers

Choose a Category

	System of Measurement System of Measurement

Inch

Metric

	For Screw Size For Screw Size

	Finish Finish

Zinc Plated

Zinc Yellow-Chromate Plated

Zinc-Flake Coated

Yellow Zinc Plated

	Washer Type Washer Type


Flat	Split Lock

Tooth Lock	Metal Bonded

Square	Cup for Oversized Holes

Spring Lock	Tab Lock

Wedge Lock	Curved

Angled Edge	Countersunk

Leveling for I- Beams	Square-Neck Bolt Lock

	Specifications Met Specifications Met

ASME

SAE

DIN

ISO

USS

Mil. Spec.

	OD OD

	ID ID

	Thickness Thickness

0.005" to 0.030"

0.010" to 0.016"

0.012" to 0.018"

0.014"

0.014" to 0.02"

0.016" to 0.022"

0.018"

0.018" to 0.023"

0.018" to 0.024"

0.020"

0.020" to 0.027"

0.020" to 0.040"

0.022" to 0.028"

0.023" to 0.027"

0.023" to 0.028"

0.024"

0.025"

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 0.035"

0.028" to 0.036"

0.029" to 0.034"

0.030" to 0.065"

0.031"

0.032" to 0.040"

0.034" to 0.044"

0.035"

0.036"

0.036" to 0.044"

0.036" to 0.045"

0.036" to 0.065"

0.037" to 0.045"

0.039"

0.040"

0.040" to 0.050"

0.042" to 0.050"

0.042" to 0.051"

0.042" to 0.052"

0.043"

0.043" to 0.051"

0.045" to 0.055"

0.047"

0.047" to 0.055"

0.048" to 0.052"

0.050" to 0.070"

0.051" to 0.080"

0.052" to 0.060"

0.054" to 0.070"

0.055"

0.055" to 0.065"

0.055" to 0.069"

0.056"

0.056" to 0.062"

0.056" to 0.070"

0.056" to 0.071"

0.057" to 0.067"

0.058" to 0.068"

0.059" to 0.067"

0.059" to 0.069"

0.060" to 0.064"

0.060" to 0.080"

0.062"

0.063"

0.064" to 0.104"

0.071"

0.073" to 0.083"

0.074" to 0.094"

0.074" to 0.121"

0.075" to 0.119"

0.075" to 0.202"

0.076" to 0.080"

0.078"

0.086" to 0.132"

0.089" to 0.099"

0.090" to 0.110"

0.090" to 0.112"

0.090" to 0.114"

0.094"

0.098"

0.098" to 0.120"

0.099" to 0.119"

0.104" to 0.114"

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" to 1/8"

0.115" to 0.135"

0.120" to 0.140"

0.122" to 0.177"

0.125"

0.125" to 0.145"

0.136" to 0.192"

0.141"

0.146" to 0.174"

0.153" to 0.213"

0.156"

0.170" to 0.190"

0.170" to 0.200"

0.188"

0.193" to 0.248"

0.210" to 0.280"

0.219"

0.220" to 0.240"

0.220" to 0.280"

0.225" to 0.265"

0.234" to 0.266"

0.235" to 0.250"

0.235" to 0.265"

0.249" to 0.327"

0.250"

0.250" to 0.270"

0.270" to 0.290"

0.360" to 0.380"

0.360" to 0.390"

0.485" to 0.515"

0.2 to 0.4 mm

0.4 to 0.6 mm

0.5 to 0.7 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

1.0 mm

1.0 to 1.4 mm

1.1 to 1.3 mm

1.1 to 1.4 mm

1.2 mm

1.4 to 1.8 mm

1.5 mm

1.5 to 1.7 mm

1.7 mm

1.8 to 2.2 mm

1.9 to 2.1 mm

2 to 2.4mm

2.3 to 2.7 mm

2.7 to 3.3 mm

2.8 to 3.2 mm

3.0 mm

3.3 to 3.7 mm

3.4 mm

3.4 to 4.6 mm

3.7 to 4.3 mm

3.8 mm

3.8 to 4.2 mm

3.9 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

Grade 9

Class 8.8

	ASME Designation ASME Designation

Regular

Narrow

Wide

	Tooth Location Tooth Location

	Internal
	External
	Internal/External

	Split Lock Washer Type Split Lock Washer Type


Standard	Curved

	Width Width

	Length Length

	For Rivet Diameter For Rivet Diameter

	Maximum Pressure for Fluids Maximum Pressure for Fluids

10,000 psi or greater

	Spring Lock Washer Shape Spring Lock Washer Shape


Conical	Curved

	Maximum Pressure for Gases Maximum Pressure for Gases

200 psi

Not Rated

	Seal Hardness Seal Hardness

Durometer 55A

Durometer 85A

	For Tube OD For Tube OD

3/4"

7/8"

	For Use In For Use In

Metal

Plastic

	Overall Height Overall Height

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665 Products

About Washers

SAE Washers

SAE washers generally have a smaller ID and OD than USS washers.

Metric General Purpose Washers

Use these metric washers to evenly distribute the load under bolt or screw heads and nuts when fastening. They can also act as spacers.

General Purpose Washers

Oversized Washers

Compared to our general purpose washers, these have exaggerated diameters and/or thicknesses for covering oversized holes or for use as spacers and levelers.

Metric Oversized Washers

Compared to our general purpose washers, these have exaggerated diameters and/or thicknesses. Use them to cover oversized holes, hold heavy fastening loads, or as spacers and levelers.

USS Washers

USS washers generally have a larger ID and OD than SAE washers.

Mil. Spec. Washers

Choose these washers for their adherence to strict military standards for material and construction.

ASME Washers for Soft Material

Also known as Type B washers, these distribute your fastener's load over a larger surface area than other washers to minimize damage to soft materials.

Washers with Material Certification

These washers come with a traceable lot number and a physical and chemical test report.

Washers for Blind Rivets

Also known as backup washers, these are for use with blind rivets for extra support when fastening into soft material.

Square Washers

Square washers fit into slots and channels and have flat sides to keep them from rotating.

Square Washers for Blind Rivets

Also known as backup washers, these are for use with blind rivets for extra support when fastening into soft material.

Cup Washers for Oversized Holes

Cover oversized holes and the ends of tubes and pipe with these cup-shaped washers.

Curved Washers

Also known as saddle washers, these curved washers fit round surfaces such as tubes and pipe.

Angled-Edge Washers
for Tie-Down Straps

Use the angled edges to hold and align tie-down straps.

Metric Countersunk Washers

Flat and oval head screws sit flush within these metric washers for a neat, finished appearance.

Split Lock Washers

As a screw is tightened, these washers flatten to add tension to the joint and prevent loosening from small amounts of vibration.

Metric Split Lock Washers

As you tighten a bolt, these metric washers flatten to add tension to the threaded joint and prevent loosening from small amounts of vibration.

Oversized Split Lock Washers

Compared to standard split lock washers, these are thicker and have larger outside diameters.

Internal-Tooth Lock Washers

Internal teeth dig into the screw head while the smooth outside edge won't snag objects. Use with fasteners that have small heads, such as fillister and cheese head screws.

Internal-Tooth Lock
Washers for Soft Material

Slightly domed with an oversized outside diameter, these washers distribute your fastener's load over a larger surface area than other internal-tooth lock washers to limit damage to soft material.

External-Tooth Lock Washers

Teeth on the outside edge of the washer bite into the screw head and joint for a tight grip.

Internal-/External-Tooth
Lock Washers

The combination of internal and external teeth boosts gripping power to maintain a tight hold and provide more vibration resistance than other tooth lock washers. Use with fasteners that have heads large enough to make contact with the external teeth, such as pan, button, and binding head screws.

Metric Spring Lock Washers

The arched shape of these washers presses up against a bolt and down against a nut to prevent loosening from wear, vibration, or temperature changes.

Belleville Spring Lock Washers
for Socket Head Screws

These washers have smaller outside diameters than standard spring lock washers to fit neatly under socket head cap screws.

Tab Lock Washers

Bend one tab against the side of the mounting surface and the other tab against the flats on a bolt or nut to prevent both the fastener and washer from turning and loosening in high-vibration applications, such as a motor mount.

Wedge Lock Washers

Also known as NORD-LOCKÂ® washers, these two-piece washers provide more locking power than split, tooth, and spring lock washers. Wedges on the inside lock the two pieces together, and serrations on the exterior grip surfaces to resist loosening from high vibration and shifting.

Square-Neck Bolt Lock Washers

Designed for use with square-neck bolts such as carriage bolts, these washers have teeth that dig into wood and other soft material to prevent rotation.

Pressure-Rated Metal-Bonded
Sealing Washers
for Nuts and Washers

Also known as thread-sealing washers, use these under nuts and other washers.

High-Pressure-Rated
Metal-Bonded Sealing Washers

Able to withstand pressure greater than 3,000 psi, these one-piece bonded washers create the tightest seals.

Metric High-Pressure-Rated
Metal-Bonded Sealing Washers

Able to withstand pressure greater than 7,000 psi, these one-piece bonded washers create the tightest seals.

Metric Leveling Washers for I-Beams

Lock Washer Assortments

Tooth Lock Washer Assortments

Teeth bite into the joint for a tighter grip than split lock washers.

Split Lock Washer Assortments

As a screw is tightened, these washers flatten to add tension to the joint and prevent loosening from small amounts of vibration.

Unthreaded Inserts

Unthreaded Inserts for Metal

Protect bolts from sideways (shear) pressure.

Steel Unthreaded Inserts for Plastic

A zinc-plated finish gives these steel inserts mild corrosion resistance.

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About Washers

Washers

SAE Washers

Metric General Purpose Washers

General Purpose Washers

Oversized Washers

Metric Oversized Washers

USS Washers

Mil. Spec. Washers

ASME Washers for Soft Material

Washers with Material Certification

Washers for Blind Rivets

Square Washers

Square Washers for Blind Rivets

Cup Washers for Oversized Holes

Curved Washers

Angled-Edge Washersfor Tie-Down Straps

Metric Countersunk Washers

Split Lock Washers

Metric Split Lock Washers

Oversized Split Lock Washers

Internal-Tooth Lock Washers

Internal-Tooth LockWashers for Soft Material

External-Tooth Lock Washers

Internal-/External-ToothLock Washers

Metric Spring Lock Washers

Belleville Spring Lock Washersfor Socket Head Screws

Tab Lock Washers

Wedge Lock Washers

Square-Neck Bolt Lock Washers

Pressure-Rated Metal-BondedSealing Washers for Nuts and Washers

High-Pressure-RatedMetal-Bonded Sealing Washers

Metric High-Pressure-RatedMetal-Bonded Sealing Washers

Metric Leveling Washers for I-Beams

Lock Washer Assortments

Tooth Lock Washer Assortments

Split Lock Washer Assortments

Unthreaded Inserts

Unthreaded Inserts for Metal

Steel Unthreaded Inserts for Plastic

Angled-Edge Washers
for Tie-Down Straps

Internal-Tooth Lock
Washers for Soft Material

Internal-/External-Tooth
Lock Washers

Belleville Spring Lock Washers
for Socket Head Screws

Pressure-Rated Metal-Bonded
Sealing Washers
for Nuts and Washers

High-Pressure-Rated
Metal-Bonded Sealing Washers

Metric High-Pressure-Rated
Metal-Bonded Sealing Washers