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A ring split at one point and bent into a helical shape. This causes the washer to exert a spring force between the fastener's head and the substrate, which maintains the washer hard against the substrate and the bolt thread hard against the nut or substrate thread, creating more friction and resistance to rotation. Spring washers are a left hand helix and allow the thread to be tightened in a right hand direction only, i.e. a clockwise direction. When a left hand turning motion is applied, the raised edge bites into the underside of the bolt or nut and the part that it is bolted to, thus resisting turning. Therefore, spring washers are ineffective on left hand threads and hardened surfaces. Also, they are not to be used in conjunction with a flat washer under the spring washer, as this isolates the spring washer from biting into the component that will resist turning.Â
SJS is one of the largest manufacturer of Spring Washers established in UAE since 1992. We follow the manufacturing standard of fasteners such as ASTM AISI BS EN ISO DIN & JIS. We are always striving to diversify our Spring Washers manufacturing capabilities to be able to satisfy the needs of our customers all around the globe regarding Spring Washers
| Dia | ID | OD | THK |
|---|---|---|---|
| M5 | 5.10 | 9.20 | 1.20 |
| M6 | 6.10 | 11.80 | 1.60 |
| M8 | 8.10 | 14.80 | 2.00 |
| M10 | 10.20 | 18.10 | 2.20 |
| M12 | 12.20 | 21.10 | 2.50 |
| M14 | 14.20 | 24.10 | 3.00 |
| M16 | 16.20 | 27.40 | 3.50 |
| M18 | 18.20 | 29.40 | 3.50 |
| M20 | 20.20 | 33.60 | 4.00 |
| M22 | 22.50 | 35.90 | 4.00 |
| M24 | 24.50 | 40.00 | 5.00 |
| M27 | 27.50 | 43.00 | 5.00 |
| M30 | 30.50 | 48.20 | 6.00 |
| M36 | 36.50 | 58.20 | 6.00 |
| M39 | 39.50 | 61.20 | 6.00 |
| M42 | 42.50 | 66.20 | 7.00 |
| M45 | 45.50 | 71.20 | 7.00 |
| M48 | 49.00 | 75.00 | 7.00 |
| M52 | 53.00 | 83.00 | 8.00 |
| M56 | 57.00 | 57.00 | 8.00 |
| M60 | 61.00 | 91.00 | 8.00 |
| M64 | 64.00 | 95.00 | 8.00 |
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