
Threaded Fasteners
M6–M24+ · Grover / Split Lock
Place an Order
DIN 127 spring washers, also known as Grover washers, are spring-type fasteners that help prevent bolt-and-nut connections from loosening. They are used to improve the stability of bolted connections in structures subject to vibration and mechanical movement. They are known internationally as Spring Washer, Split Lock Washer and Grover Washer.
The elastic shape of the spring washer creates additional tension when compressed and helps reduce the chance of a bolt-and-nut connection loosening by itself. Washer size is selected to match the bolt diameter: M6, M8, M10, M12, M16, M20, M24 and other sizes.
DIN 127 Grover washers are used in steel structures, construction and assembly work, machine building, industrial equipment, mechanical installations, automotive and equipment, engineering systems and vibrating machinery. The washer material and surface finish should be selected to suit the operating environment and the bolt material.
Borufitting.az sells and supplies DIN 127 spring washers, Grover washers and spring washers in various sizes and surface finishes. For a quote, send the washer size (M), material, surface finish and required quantity.
Weights are approximate and shown in grams (g) per piece.
Sample weights: M6 ≈ 0.83 g · M8 ≈ 1.60 g · M10 ≈ 2.53 g · M12 ≈ 3.82 g · M16 ≈ 8.91 g · M20 ≈ 15.2 g · M24 ≈ 26.2 g.
| Size | Weight, g |
|---|---|
| M2 | 0.033 |
| M2.2 | 0.050 |
| M2.5 | 0.053 |
| M3 | 0.11 |
| M3.5 | 0.12 |
| M4 | 0.18 |
| M5 | 0.36 |
| M6 | 0.83 |
| M7 | 0.93 |
| M8 | 1.60 |
| Size | Weight, g |
|---|---|
| M10 | 2.53 |
| M12 | 3.82 |
| M14 | 6.01 |
| M16 | 8.91 |
| M18 | 9.73 |
| M20 | 15.2 |
| M22 | 16.5 |
| M24 | 26.2 |
| M27 | 28.7 |
| M30 | 44.3 |
| Size | Weight, g |
|---|---|
| M36 | 67.3 |
| M39 | 71.7 |
| M42 | 111 |
| M45 | 117 |
| M48 | 123 |
| M52 | 182 |
| M56 | 193 |
| M60 | 203 |
| M64 | 218 |
| M68 | 228 |