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For Screw Size For Screw Size | Hide |
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Material Material |
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Washer Type Washer Type |
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| Spring Lock | Tab Lock |
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| Wedge Lock |
Thickness Thickness |
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Hardness Hardness |
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REACH (Registration, Evaluation, Authorization and Restriction of Chemicals) REACH (Registration,Evaluation, Authorization and Restriction of Chemicals) |
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RoHS (Restriction of Hazardous Substances) RoHS (Restriction ofHazardous Substances) |
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DFARS (Defense Acquisition Regulations Supplement) DFARS (Defense AcquisitionRegulations Supplement)  |
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Tooth Location Tooth Location |
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Serration Location Serration Location |
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Finish Finish |
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Spring Lock Washer Shape Spring Lock Washer Shape |
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About Washers
More
Spring Lock Washers for Slotted Bearing Nuts
Designed for use with bearing nuts, these lock washers have a conical shape that presses like a spring against bearings, bushings, gears, and pulleys to hold them in place on your threaded shaft or spindle. They also have an inner tab that sits in the shaft or spindle’s keyway to prevent the nut from loosening. Made of steel, they’re strong and flexible.
Spring lock washers with external teeth grip components using their teeth, in addition to spring tension.
DIN 462 and DIN 5406 washers meet international standards for lock washer dimensions. Pair DIN 462 washers with DIN 1804 bearing nuts, and DIN 5406 washers with DIN 981 bearing nuts.
For technical drawings and 3-D models, click on a part number.
Tab | |||||||||||
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| For Screw Size | ID, mm | OD, mm | Thick., mm | Wd., mm | Dp., mm | Overall Ht., mm | Hardness | Specifications Met | For Bearing Nut Specifications Met | Each | |
Steel | |||||||||||
For Stepped Nuts | |||||||||||
| M45 | 45.0 | 68.0 | 1.20 | 8.0 | 2.5 | 5.0 | Not Rated | DIN 462 | DIN 1804 | 000000000 | 00000 |
For Chamfered Nuts—with External Teeth | |||||||||||
| M45 | 45.0 | 69.0 | 1.25 | 6.0 | 2.5 | 4.5 | Not Rated | DIN 5406 | DIN 981 | 000000000 | 0000 |
Wedge Lock Washers
Also known as NORD-LOCK® 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. Washers are reusable.
316 stainless steel washers have excellent resistance to chemicals and salt water. They may be mildly magnetic.
Zinc-flake-coated 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 | Heat Treatment | Pkg. Qty. | Pkg. | |
316 Stainless Steel | ||||||||
|---|---|---|---|---|---|---|---|---|
| 1 3/4", M45 | 1.820" | 2.760" | 0.260"-0.280" | Rockwell C51 | Case Hardened | 1 | 000000000 | 0000000 |
| 1 7/8", M45 | 1.950" | 2.950" | 0.260"-0.280" | Rockwell C51 | Case Hardened | 1 | 000000000 | 000000 |
Zinc-Flake-Coated Steel | ||||||||
| 1 3/4", M45 | 1.820" | 2.760" | 0.270"-0.290" | Rockwell C46 | __ | 1 | 000000000 | 00000 |
| 1 7/8", M45 | 1.950" | 2.950" | 0.270"-0.290" | Rockwell C46 | __ | 1 | 000000000 | 00000 |
Metric Tab Lock Washers
Bend the tab of these metric lock washers against the flats of a hex nut or bolt head to prevent the fastener and washer from turning and loosening due to vibration, wear, or changes in temperature. Their partial cone shape gives these washers spring-like flexibility, so they distribute force and grip tighter than split and tooth lock washers. All meet DIN 432, an international standard for tab washer dimensions.
Steel washers resist wear better than 316 stainless steel, but aren’t as corrosion resistant.
For technical drawings and 3-D models, click on a part number.
| For Screw Size | ID, mm | OD, mm | Overall Ht., mm | Thick., mm | Tab Wd., mm | Hardness | Specifications Met | Pkg. Qty. | Pkg. | |
Steel | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|
| M45 | 46 | 95 | 13 | 2 | 13 | Rockwell B50 | DIN 432 | 1 | 000000000 | 000000 |