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Ring Shims
Precisely align, level, and adjust spacing on fasteners, shafts, and machinery with these shims.
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.
Stainless steel shims are more corrosion resistant than steel shims. 316 stainless steel shims have the best corrosion resistance of our stainless steel shims.
For technical drawings and 3-D models, click on a part number.
ID | ID Tolerance | OD | OD Tolerance | Material | Min. Hardness | Specifications Met | Pkg. Qty. | Pkg. | |
0.078" Thick. (-0.012" to 0.004" Tolerance) | |||||||||
---|---|---|---|---|---|---|---|---|---|
3/8" | -0.005" to 0.005" | 5/8" | -0.005" to 0.005" | 316 Stainless Steel | Rockwell B70 | ASTM A240 | 1 | 000000000 | 00000 |
1/2" | -0.005" to 0.005" | 3/4" | -0.005" to 0.005" | 316 Stainless Steel | Rockwell B70 | ASTM A240 | 1 | 000000000 | 0000 |
5/8" | -0.005" to 0.005" | 1" | -0.005" to 0.005" | 316 Stainless Steel | Rockwell B70 | ASTM A240 | 1 | 000000000 | 0000 |
3/4" | -0.005" to 0.005" | 1 1/8" | -0.005" to 0.005" | 316 Stainless Steel | Rockwell B70 | ASTM A240 | 1 | 000000000 | 0000 |
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.
Sleeve | Temperature Range, °F | ||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|
For Screw Size | ID | OD | OD | Ht. | Thick. | Overall Ht. | Min. | Max. | Hardness | Color | Pkg. Qty. | Pkg. | |
Nylon 6/6 Plastic | |||||||||||||
3/8" | 0.378" | 0.755" | 0.505" | 0.250" | 0.078" | 0.328" | -40° | 180° | Rockwell R108 | Off-White | 100 | 000000000 | 000000 |
Split Lock Washers
As a screw is tightened, these washers flatten to add tension to the joint, counteracting fatigue around the joint from small amounts of vibration. This makes them a common choice to prevent fasteners from loosening. However, they resist the least amount of vibration compared to other locking washers.
These washers are compatible with fasteners that have right-hand threads to prevent clockwise rotation. The uneven split ends bite into fasteners for a tight grip, but they won’t work with hardened surfaces. These washers hold better than curved or wave washers. They are not reusable after tightening.
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.
Hot-dipped galvanized steel washers are 10 times as corrosion resistant as zinc- and zinc yellow-chromate plated washers.
Zinc-flake-coated steel washers are 40 times as corrosion resistant as zinc-plated washers and comparable to Magni-coated washers.
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 | ||||||||
---|---|---|---|---|---|---|---|---|
5/16" | 0.322" | 0.583" | 0.078" | Rockwell C35 | ASME B18.21.1 | 100 | 000000000 | 00000 |
Black-Oxide Steel | ||||||||
5/16" | 0.322" | 0.583" | 0.078" | Rockwell C38 | ASME B18.21.1 | 50 | 00000000 | 0000 |
316 Stainless Steel | ||||||||
5/16" | 0.322" | 0.583" | 0.078" | Rockwell C35 | ASME B18.21.1 | 100 | 000000000 | 00000 |
18-8 Stainless Steel | ||||||||
5/16" | 0.322" | 0.583" | 0.078" | Rockwell C35 | ASME B18.21.1 | 100 | 000000000 | 0000 |
Zinc-Plated Steel | ||||||||
5/16" | 0.322" | 0.583" | 0.078" | Rockwell C38 | ASME B18.21.1 | 100 | 000000000 | 0000 |
5/16" | 0.322" | 0.583" | 0.078" | Rockwell C38 | ASME B18.21.1 | 1,000 | 000000000 | 00000 |
Zinc Yellow-Chromate Plated Grade 8 Steel | ||||||||
5/16" | 0.322" | 0.583" | 0.078" | Rockwell C38 | ASME B18.21.1 | 100 | 000000000 | 0000 |
Hot-Dipped Galvanized Steel | ||||||||
5/16" | 0.322" | 0.583" | 0.078" | Rockwell C38 | ASME B18.21.1 | 100 | 000000000 | 0000 |
Zinc-Flake-Coated Steel | ||||||||
5/16" | 0.322" | 0.583" | 0.078" | Rockwell C38 | ASME B18.21.1 | 25 | 00000000 | 0000 |
Steel | ||||||||
5/16" | 0.322" | 0.583" | 0.078" | Rockwell C38 | ASME B18.21.1 | 100 | 000000000 | 0000 |
5/16" | 0.322" | 0.583" | 0.078" | Rockwell C38 | ASME B18.21.1 | 1,000 | 000000000 | 00000 |
Aluminum | ||||||||
5/16" | 0.322" | 0.583" | 0.078" | Rockwell B87 | ASME B18.21.1 | 50 | 000000000 | 0000 |
Bronze | ||||||||
5/16" | 0.322" | 0.583" | 0.078" | Rockwell B90 | ASME B18.21.1 | 50 | 000000000 | 00000 |
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.
18-8 stainless steel washers have excellent corrosion resistance in most environments. 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 | ||||||||
5/16" | 0.314" | 0.583" | 0.078" | Rockwell C35 | ASME B18.21.1; MS35338-140 | 10 | 000000000 | 00000 |
Passivated 18-8 Stainless Steel | ||||||||
MS35338 | ||||||||
5/16" | 0.314" | 0.583" | 0.078" | Rockwell C35 | ASME B18.21.1; MS35338-140 | 25 | 000000000 | 0000 |
Black-Oxide 18-8 Stainless Steel | ||||||||
MS35338 | ||||||||
5/16" | 0.314" | 0.583" | 0.078" | Rockwell C35 | ASME B18.21.1; MS35338-140 | 50 | 000000000 | 0000 |
Cadmium-Plated Steel | ||||||||
MS35338 | ||||||||
5/16" | 0.314" | 0.583" | 0.078" | Rockwell C38 | ASME B18.21.1; MS35338-45 | 50 | 000000000 | 0000 |
Zinc Yellow-Chromate Plated Steel | ||||||||
MS35338 | ||||||||
5/16" | 0.314" | 0.583" | 0.078" | Rockwell C38 | ASME B18.21.1; MS35338-45 | 50 | 000000000 | 0000 |
Split Lock Washers for Socket Head Screws
Also known as high-collar lock washers, these have a smaller outside diameter than standard split lock washers to fit neatly under socket head cap screws. As the screw is tightened, these washers flatten to add tension to the joint. This counteracts fatigue around the joint from small amounts of vibration, making these washers a common choice to prevent fasteners from loosening. However, compared to other locking washers, they resist the least amount of vibration.
These washers are compatible with fasteners that have right-hand threads to prevent clockwise rotation. The uneven split ends bite into fasteners for a tight grip, but they won’t work with hardened surfaces. These washers hold better than curved or wave washers. They are not reusable after tightening.
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. Black-oxide 18-8 stainless steel washers have a matte black finish.
Black-oxide steel washers are mildly corrosion resistant in dry environments. Zinc-plated steel washers are corrosion resistant in wet environments.
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. | |
316 Stainless Steel | ||||||||
---|---|---|---|---|---|---|---|---|
1/4" | 0.260" | 0.363" | 0.078" | Rockwell C35 | ASME B18.21.1 | 100 | 000000000 | 00000 |
18-8 Stainless Steel | ||||||||
No. 12 | 0.227" | 0.331" | 0.078" | Rockwell C35 | __ | 100 | 000000000 | 0000 |
1/4" | 0.260" | 0.363" | 0.078" | Rockwell C35 | ASME B18.21.1 | 100 | 000000000 | 0000 |
Black-Oxide 18-8 Stainless Steel | ||||||||
1/4" | 0.260" | 0.363" | 0.078" | Rockwell C35 | ASME B18.21.1 | 50 | 000000000 | 00000 |
Zinc-Plated Steel | ||||||||
1/4" | 0.260" | 0.363" | 0.078" | Rockwell C38 | ASME B18.21.1 | 50 | 000000000 | 0000 |
Black-Oxide Steel | ||||||||
1/4" | 0.260" | 0.363" | 0.078" | Rockwell C38 | ASME B18.21.1 | 50 | 000000000 | 0000 |
Steel | ||||||||
1/4" | 0.260" | 0.363" | 0.078" | Rockwell C38 | ASME B18.21.1 | 100 | 000000000 | 0000 |
Leveling Washers for I-Beams
Commonly called beveled washers, these are tapered to fit inside an I-beam's flange to provide a parallel bearing surface.
Black-oxide iron washers have a matte-black finish that prevents corrosion in dry environments.
Hot-dipped galvanized iron washers are corrosion resistant in wet environments.
Aluminum washers are lightweight and corrosion resistant in wet environments.
For technical drawings and 3-D models, click on a part number.
Thick. | ||||||||
---|---|---|---|---|---|---|---|---|
For Screw Size | ID | Wd. | (A) | (B) | Hardness | Pkg. Qty. | Pkg. | |
Iron | ||||||||
1/4" | 0.312" | 0.688" | 0.219" | 0.078" | Rockwell B62 | 25 | 000000000 | 000000 |
Black-Oxide Iron | ||||||||
1/4" | 0.312" | 0.688" | 0.219" | 0.078" | Rockwell B62 | 10 | 000000000 | 0000 |
Hot-Dipped Galvanized Iron | ||||||||
1/4" | 0.312" | 0.688" | 0.219" | 0.078" | Rockwell B72 | 25 | 000000000 | 00000 |
Aluminum | ||||||||
1/4" | 0.312" | 0.688" | 0.219" | 0.078" | Not Rated | 5 | 000000000 | 0000 |