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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.
Slotted Shims | ||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|
Slot | Insertion Tools | |||||||||||
Thick., mm | Thick. Tolerance, mm | Lg., mm | Wd., mm | Wd., mm | Dp., mm | For Max. Screw Size | Min. Hardness | Magnetic Properties | Each | Each | ||
Shim Trade Size A | ||||||||||||
0.7 | -0.032 to 0.032 | 50 | 50 | 15.9 | 25.4 | M15 | Rockwell B70 | May Be Mildly Magnetic | 00000000 | 00000 | 000000000 | 00000 |
Shim Trade Size B | ||||||||||||
0.7 | -0.032 to 0.032 | 75 | 75 | 22.3 | 38.1 | M22 | Rockwell B70 | May Be Mildly Magnetic | 00000000 | 0000 | 00000000 | 0000 |
Shim Trade Size C | ||||||||||||
0.7 | -0.032 to 0.032 | 100 | 100 | 31.8 | 50.8 | M30 | Rockwell B70 | May Be Mildly Magnetic | 00000000 | 00000 | 00000000 | 0000 |
Shim Trade Size D | ||||||||||||
0.7 | -0.032 to 0.032 | 125 | 125 | 41.3 | 84.1 | M40 | Not Rated | May Be Mildly Magnetic | 00000000 | 00000 | 000000 | 00 |
Metric Split Lock Washers
As a screw is tightened, these metric 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. They meet a DIN or ASME standard for split lock washer dimensions.
Curved and wave split lock washers can be used with fasteners that have right- or left-hand threads to prevent clockwise and counterclockwise rotation. These washers are reusable—they retain their shape when untightened and will not damage fasteners. Wave washers touch fasteners at more points, so they grip tighter than curved washers. Their shape also compensates for uneven surfaces and tolerance variations.
Stainless steel washers resist corrosion better than steel and are nearly as strong. 18-8 stainless steel washers withstand humid, damp, and washdown environments but will corrode when exposed to salt water and other chlorine solutions.
Stronger and more durable than stainless steel, steel washers plated with zinc or galvanized withstand varying degrees of corrosion. Zinc-plated steel and zinc yellow-chromate plated steel washers withstand wet environments. However, they will corrode in salt water and chlorine solutions. The zinc plating temporarily protects against rust, but once it wears off, the steel will rust.
Steel washers are stronger and resist wear better than zinc-plated steel and stainless steel washers. Use them in dry environments. Black-oxide steel washers have a black residue that forms from being heat treated; the color will wear away over time.
For technical drawings and 3-D models, click on a part number.
For Screw Size | ID, mm | OD, mm | Thick., mm | Overall Ht., mm | Hardness | Specifications Met | Pkg. Qty. | Pkg. | |
18-8 Stainless Steel | |||||||||
---|---|---|---|---|---|---|---|---|---|
Curved | |||||||||
M4 | 4.1 | 7.6 | 0.7 | 1.2 | Not Rated | DIN 128A | 100 | 000000000 | 00000 |
Wave | |||||||||
M4 | 4.4 | 7.6 | 0.7 | 1.4 | Not Rated | DIN 128B | 50 | 000000000 | 00000 |
Zinc-Plated Steel | |||||||||
Curved | |||||||||
M4 | 4.1 | 7.6 | 0.7 | 1.2 | Rockwell C44 | DIN 128A | 100 | 000000000 | 0000 |
Wave | |||||||||
M4 | 4.1 | 7.6 | 0.7 | 1.2 | Rockwell C44 | DIN 128B | 100 | 000000000 | 0000 |
Zinc Yellow-Chromate Plated Steel | |||||||||
Curved | |||||||||
M4 | 4.1 | 7.6 | 0.7 | 1.2 | Rockwell C44 | DIN 128A | 100 | 000000000 | 0000 |
Steel | |||||||||
Curved | |||||||||
M3 | 2.7 | 5.6 | 0.7 | 1.3 | Rockwell C44 | DIN 6905 | 200 | 000000000 | 0000 |
Black-Oxide Steel | |||||||||
Curved | |||||||||
M4 | 4.1 | 7.6 | 0.7 | 1.2 | Rockwell C44 | DIN 128A | 100 | 000000000 | 0000 |