System of Measurement System of Measurement |
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Thickness Thickness | Show |
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Thickness Thickness | Hide |
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Material Material |
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Shape Shape |
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| Slotted | Sheet and Bar |
Individual/Set Individual/Set |
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DFARS (Defense Acquisition Regulations Supplement) DFARS (DefenseAcquisition Regulations Supplement)  |
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Maximum Temperature Maximum Temperature |
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Minimum Temperature Minimum Temperature |
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Washer Type Washer Type |
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| Sleeve | Split Lock |
Magnetic Properties Magnetic Properties |
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Temper Rating Temper Rating |
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Specifications Met Specifications Met |
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About Washers
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Slotted Shims
The slot lets you insert, remove, and adjust the shims without disassembling your machinery, while the tab keeps fingers and tools away from machine feet. Use an insertion tool (sold separately) for better leverage and reach. Shims are etched with the thickness.
18-8 stainless steel shims have a balance of strength and corrosion resistance.
For technical drawings and 3-D models, click on a part number.
Slot | Each | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
| Thick. | Thick. Tolerance | Lg. | Wd. | Wd. | Dp. | For Max. Screw Size | Min. Hardness | Magnetic Properties | 1-9 | 10-Up | |
Trade Size A | |||||||||||
| 0.04" | -0.003" to 0.003" | 2" | 2" | 9/16" | 1 9/32" | 1/2" | Rockwell B70 | May Be Mildly Magnetic | 00000000 | 00000 | 00000 |
Trade Size AA | |||||||||||
| 0.04" | -0.003" to 0.003" | 1 1/2" | 1 1/2" | 7/16" | 61/64" | 3/8" | Rockwell B70 | May Be Mildly Magnetic | 000000000 | 0000 | 0000 |
Trade Size B | |||||||||||
| 0.04" | -0.003" to 0.003" | 3" | 3" | 13/16" | 1 29/32" | 3/4" | Rockwell B70 | May Be Mildly Magnetic | 00000000 | 0000 | 0000 |
Trade Size BB | |||||||||||
| 0.04" | -0.003" to 0.003" | 2 1/2" | 2 1/2" | 11/16" | 1 19/32" | 5/8" | Rockwell B70 | May Be Mildly Magnetic | 000000000 | 0000 | 0000 |
Trade Size C | |||||||||||
| 0.04" | -0.003" to 0.003" | 4" | 4" | 1 3/16" | 2 19/32" | 1 1/8" | Rockwell B70 | May Be Mildly Magnetic | 00000000 | 0000 | 0000 |
Trade Size D | |||||||||||
| 0.04" | -0.003" to 0.003" | 5" | 5" | 1 9/16" | 3 9/32" | 1 1/2" | Rockwell B70 | May Be Mildly Magnetic | 00000000 | 0000 | 0000 |
Trade Size E | |||||||||||
| 0.04" | -0.003" to 0.003" | 6" | 6" | 1 15/16" | 4" | 1 7/8" | Rockwell B70 | May Be Mildly Magnetic | 000000000 | 0000 | 0000 |
Trade Size G | |||||||||||
| 0.04" | -0.003" to 0.003" | 6" | 6" | 2 5/16" | 4 3/16" | 2 1/4" | Rockwell B70 | May Be Mildly Magnetic | 000000000 | 0000 | 0000 |
Trade Size H | |||||||||||
| 0.04" | -0.003" to 0.003" | 8" | 8" | 2 5/16" | 5 3/16" | 2 1/4" | Rockwell B70 | May Be Mildly Magnetic | 000000000 | 0000 | 0000 |
Shim Stock
Cut it into custom shapes to fit your application. Sheets come flat packed.
For accurate leveling, choose materials such as steel or stainless steel, which are hard enough to resist scratching and deforming. Softer shims, like copper or aluminum, can be used as wear plates between components that rub together, preventing damage to equipment. Metal shims include a material certificate with traceable lot number and test report.
Brass, copper, and bronze shim stock is corrosion resistant and nonmagnetic. Bronze shim stock is stronger than copper or brass shim stock.
PTFE plastic shim stock is slippery, so it can be used to reduce friction between parts. It also has excellent chemical resistance.
For technical drawings and 3-D models, click on a part number.
| Thick. | Thick. Tolerance | Min. Hardness | Temper Rating | Certification | Specifications Met | Each | |
6" Wd. × 50" Lg. | |||||||
|---|---|---|---|---|---|---|---|
| 0.04" | -0.002" to 0.002" | Rockwell 30T76 | Full Hard | Material Certificate with Traceable Lot Number and Test Report | ASTM B103 | 0000000 | 000000 |
| Thick. | Thick. Tolerance | Color | Min. Hardness | Temperature Range, °F | Specifications Met | Each | |
8" Wd. × 12" Lg. | |||||||
|---|---|---|---|---|---|---|---|
| 0.04" | -0.004" to 0.004" | White | Rockwell R58 | -110° to 500° | ASTM D3308, MIL-T-22241 | 0000000 | 000000 |
Color-Coded Shim Stock
This shim stock is color-coded by thickness for easy identification. Cut it into custom shapes to fit your application. Shim stock is corrosion resistant. Sheets come flat packed.
Plastic shim stock works well in light duty applications. It's easier to cut than aluminum stock.
For technical drawings and 3-D models, click on a part number.
| Thick. | Thick. Tolerance | Color | Material | Max. Temperature, °F | Each | |
Sheet | ||||||
|---|---|---|---|---|---|---|
5" Wd. × 20" Lg. | ||||||
| 0.04" | -0.004" to 0.004" | Clear | PETG Plastic | 140° | 0000000 | 00000 |
10" Wd. × 20" Lg. | ||||||
| 0.04" | -0.004" to 0.004" | Clear | PETG Plastic | 140° | 0000000 | 00000 |
12" Wd. × 24" Lg. | ||||||
| 0.04" | -0.004" to 0.004" | Clear | PETG Plastic | 140° | 00000000 | 00000 |
20" Wd. × 20" Lg. | ||||||
| 0.04" | -0.004" to 0.004" | Clear | PETG Plastic | 140° | 0000000 | 00000 |
20" Wd. × 50" Lg. | ||||||
| 0.04" | -0.004" to 0.004" | Clear | PETG Plastic | 140° | 00000000 | 00000 |
Electrical-Insulating Sleeve Washers
Also known as shoulder or insulator washers, these nonmetal washers block electrical current and prevent galvanic corrosion from mating different types of metal.
Nylon 6/6 washers have good abrasion resistance. Exposure to moisture may cause them to expand.
For technical drawings and 3-D models, click on a part number.
Temperature Range, °F | ||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| For Screw Size | ID | OD | Sleeve OD | Thick. | Overall Ht. | Min. | Max. | Hardness | Color | Pkg. Qty. | Pkg. | |
Nylon 6/6 Plastic | ||||||||||||
| No. 2 | 0.093" | 0.250" | 0.156" | 0.040" | 0.080" | -40° | 180° | __ | Black | 100 | 000000000 | 00000 |
| No. 2 | 0.093" | 0.250" | 0.156" | 0.040" | 0.080" | -40° | 180° | Rockwell M71 | Off-White | 100 | 000000000 | 0000 |
| No. 4 | 0.122" | 0.281" | 0.187" | 0.040" | 0.080" | -40° | 180° | __ | Black | 100 | 000000000 | 0000 |
| No. 4 | 0.122" | 0.281" | 0.187" | 0.040" | 0.080" | -40° | 180° | Rockwell M71 | Off-White | 100 | 000000000 | 0000 |
| No. 6 | 0.146" | 0.328" | 0.218" | 0.040" | 0.080" | -40° | 180° | __ | Black | 100 | 000000000 | 0000 |
| No. 6 | 0.146" | 0.328" | 0.218" | 0.040" | 0.080" | -40° | 180° | Rockwell M71 | Off-White | 100 | 000000000 | 0000 |
| No. 8 | 0.171" | 0.375" | 0.250" | 0.040" | 0.086" | -40° | 180° | Rockwell R108 | Off-White | 100 | 000000000 | 0000 |
| No. 8 | 0.171" | 0.375" | 0.250" | 0.040" | 0.290" | -40° | 180° | Rockwell R108 | Off-White | 100 | 000000000 | 0000 |
| 1/2" | 0.515" | 1.000" | 0.625" | 0.040" | 0.370" | -40° | 180° | Rockwell R108 | Off-White | 25 | 000000000 | 0000 |
Electrical-Insulating Cup Sleeve Washers
These nylon washers have a flat bottom and high walls to protect metal screw heads from electrical current and prevent galvanic corrosion from mating different types of metal. Exposure to moisture may cause them to expand.
For technical drawings and 3-D models, click on a part number.
Temperature Range, °F | |||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| For Screw Size | ID | OD | Cup ID | Inside Dp. | Thick. | Overall Ht. | Min. | Max. | Hardness | Color | Pkg. Qty. | Pkg. | |
Nylon Plastic | |||||||||||||
| No. 4 | 0.115" | 0.305" | 0.245" | 0.117" | 0.040" | 0.157" | -40° | 180° | Rockwell R120 | Off-White | 100 | 000000000 | 00000 |
| No. 6 | 0.140" | 0.360" | 0.300" | 0.142" | 0.040" | 0.182" | -40° | 180° | Rockwell R120 | Off-White | 100 | 000000000 | 0000 |
| No. 8 | 0.171" | 0.414" | 0.354" | 0.166" | 0.040" | 0.206" | -40° | 180° | Rockwell R120 | Off-White | 100 | 000000000 | 0000 |
| No. 10 | 0.194" | 0.470" | 0.410" | 0.190" | 0.040" | 0.230" | -40° | 180° | Rockwell R120 | Off-White | 100 | 000000000 | 0000 |
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.
Black-oxide steel washers are mildly corrosion resistant in dry environments.
316 stainless steel washers have excellent resistance to chemicals and salt water. They may be mildly magnetic.
18-8 stainless steel washers have good chemical resistance and may be mildly magnetic.
Zinc- and zinc yellow-chromate plated steel washers are corrosion resistant in wet environments.
Aluminum washers are lightweight and corrosion resistant in wet environments.
Bronze washers are corrosion resistant in wet environments, nonmagnetic, and electrically conductive.
Washers that meet ASME B18.21.1 adhere to strict dimensional standards. Steel washers also meet standards for material properties.
For technical drawings and 3-D models, click on a part number.
| For Screw Size | ID | OD | Thick. | Hardness | Specifications Met | Pkg. Qty. | Pkg. | |
Black-Oxide 18-8 Stainless Steel | ||||||||
|---|---|---|---|---|---|---|---|---|
| No. 8 | 0.174" | 0.293" | 0.040" | Rockwell C35 | ASME B18.21.1 | 100 | 000000000 | 00000 |
316 Stainless Steel | ||||||||
| No. 8 | 0.174" | 0.293" | 0.040" | Rockwell C35 | ASME B18.21.1 | 100 | 000000000 | 0000 |
| No. 8 | 0.174" | 0.293" | 0.040" | Rockwell C35 | ASME B18.21.1 | 1,000 | 000000000 | 00000 |
18-8 Stainless Steel | ||||||||
| No. 8 | 0.174" | 0.293" | 0.040" | Rockwell C35 | ASME B18.21.1 | 100 | 000000000 | 0000 |
| No. 8 | 0.174" | 0.293" | 0.040" | Rockwell C35 | ASME B18.21.1 | 1,000 | 000000000 | 00000 |
Zinc-Plated Steel | ||||||||
| No. 8 | 0.174" | 0.293" | 0.040" | Rockwell C38 | ASME B18.21.1 | 100 | 000000000 | 0000 |
| No. 8 | 0.174" | 0.293" | 0.040" | Rockwell C38 | ASME B18.21.1 | 1,000 | 000000000 | 0000 |
Steel | ||||||||
| No. 8 | 0.174" | 0.293" | 0.040" | Rockwell C38 | ASME B18.21.1 | 1,000 | 000000000 | 0000 |
Aluminum | ||||||||
| No. 8 | 0.174" | 0.293" | 0.040" | Rockwell B87 | ASME B18.21.1 | 100 | 000000000 | 0000 |
Bronze | ||||||||
| No. 8 | 0.174" | 0.293" | 0.040" | Rockwell B90 | ASME B18.21.1 | 100 | 000000000 | 0000 |
Mil. Spec. Split Lock Washers
Choose these washers for their adherence to strict military standards for material and construction. As a screw is tightened, they flatten to add tension to the joint and prevent loosening from small amounts of vibration.
316 stainless steel washers have excellent resistance to chemicals and salt water. They may be mildly magnetic.
Passivated stainless steel washers have added protection against oxidation and corrosion. Black-oxide stainless steel washers have a matte-black finish.
Cadmium- and zinc yellow-chromate plated steel washers are corrosion resistant in wet environments.
For technical drawings and 3-D models, click on a part number.
| For Screw Size | ID | OD | Thick. | Hardness | Specifications Met | Pkg. Qty. | Pkg. | |
Passivated 316 Stainless Steel | ||||||||
|---|---|---|---|---|---|---|---|---|
MS35338 | ||||||||
| No. 8 | 0.174" | 0.293" | 0.040" | Rockwell C35 | ASME B18.21.1; MS35338-137 | 100 | 000000000 | 00000 |
Black Oxide 316 Stainless Steel | ||||||||
MS35338 | ||||||||
| No. 8 | 0.167" | 0.293" | 0.040" | Rockwell C35 | ASME B18.21.1; MS35338-137 | 100 | 000000000 | 0000 |
Cadmium-Plated Steel | ||||||||
MS35338 | ||||||||
| No. 8 | 0.167" | 0.293" | 0.040" | Rockwell C38 | ASME B18.21.1; MS35338-42 | 50 | 000000000 | 0000 |
Zinc Yellow-Chromate Plated Steel | ||||||||
MS35338 | ||||||||
| No. 8 | 0.167" | 0.293" | 0.040" | Rockwell C38 | ASME B18.21.1; MS35338-42 | 100 | 000000000 | 0000 |
Oversized Split Lock Washers
Compared to standard split lock washers, these are thicker and have larger outside diameters. As a screw is tightened, they flatten to add tension to the joint and prevent loosening from small amounts of vibration.
18-8 stainless steel washers have good chemical resistance and may be mildly magnetic.
Washers that meet ASME B18.21.1 adhere to strict dimensional standards.
For technical drawings and 3-D models, click on a part number.
| For Screw Size | ID | OD | Thick. | Hardness | Specifications Met | Pkg. Qty. | Pkg. | |
18-8 Stainless Steel | ||||||||
|---|---|---|---|---|---|---|---|---|
| No. 6 | 0.148" | 0.266" | 0.040" | Rockwell C35 | ASME B18.21.1 | 100 | 000000000 | 00000 |