Din 127
A spring washer, also known as a contact washer or a helical spring washer, is a type of washer that is designed to provide a secure hold and reduce friction between two surfaces. It is typically made of a flexible material, such as spring steel or plastic, and has a conical or tapered shape. The tapered shape allows the washer to compress slightly when it is tightened down, creating a spring-like action that helps to maintain a constant pressure on the fastener and the material being fastened. This helps to prevent loosening due to vibration or torque and can also reduce wear on the fastener and the surrounding components. Spring washers are often used in applications where a secure hold is necessary, such as in the assembly of engines, gearboxes, and other mechanical components. They can also be used in electrical and electronic applications to help prevent the loosening of terminal connections.
| Flat Spring Washer As per Din 127 | |||||||||
| Part Code | Dia | INNER DIA (D1) | OUTER DIA | THICKNESS (S) | HIGHT (H) | ||||
| MIN | MAX | MIN | MIN | MAX | MIN | MAX | |||
| SPW03000 | M3 | 3.10 | 3.40 | 6.20 | 0.70 | 0.90 | 1.60 | 1.90 | |
| SPW04000 | M4 | 4.10 | 4.40 | 7.60 | 0.80 | 1.00 | 1.80 | 2.10 | |
| SPW05000 | M5 | 5.10 | 5.40 | 9.20 | 1.10 | 1.30 | 2.40 | 2.80 | |
| SPW06000 | M6 | 6.10 | 6.50 | 11.80 | 1.50 | 1.70 | 3.20 | 3.80 | |
| SPW08000 | M8 | 8.10 | 8.50 | 14.80 | 1.90 | 2.10 | 4.00 | 4.70 | |
| SPW10000 | M10 | 10.20 | 10.70 | 18.10 | 2.05 | 2.35 | 4.40 | 5.20 | |
| SPW12000 | M12 | 12.20 | 21.70 | 21.10 | 2.35 | 2.65 | 5.00 | 5.90 | |
| SPW14000 | M14 | 14.20 | 14.70 | 24.10 | 2.85 | 3.15 | 6.00 | 7.10 | |
| SPW16000 | M16 | 16.20 | 17.00 | 27.40 | 3.30 | 3.70 | 7.00 | 8.30 | |
| SPW18000 | M18 | 18.20 | 19.00 | 29.40 | 3.30 | 3.70 | 7.00 | 8.30 | |
| SPW20000 | M20 | 20.20 | 21.20 | 33.60 | 3.80 | 4.20 | 8.00 | 9.40 | |
| SPW24000 | M24 | 24.50 | 25.50 | 40.00 | 4.80 | 5.20 | 10.00 | 11.80 | |
| SPW30000 | M30 | 30.50 | 31.70 | 48.20 | 5.80 | 6.20 | 12.00 | 14.20 | |
Din 7980
| Square Spring Washer As per Din 7980 | |||||||||
| Part Code | Dia | INNER DIA (D1) | OUTER DIA | THICKNESS (S) | HIGHT (H) | ||||
| MIN | MAX | MIN | MIN | MAX | MIN | MAX | |||
| SPWSQ03000 | M3 | 3.10 | 3.40 | 5.60 | 0.90 | 1.10 | 2.00 | 2.36 | |
| SPWSQ04000 | M4 | 4.10 | 4.40 | 7.00 | 1.10 | 1.30 | 2.40 | 2.83 | |
| SPWSQ05000 | M5 | 5.10 | 5.40 | 8.80 | 1.50 | 1.70 | 3.20 | 3.78 | |
| SPWSQ06000 | M6 | 6.10 | 6.50 | 9.90 | 1.50 | 1.70 | 3.20 | 3.78 | |
| SPWSQ08000 | M8 | 8.10 | 8.50 | 12.70 | 1.90 | 2.10 | 4.00 | 4.72 | |
| SPWSQ10000 | M10 | 10.20 | 10.70 | 16.00 | 2.35 | 2.65 | 5.00 | 5.90 | |
| SPWSQ12000 | M12 | 12.20 | 21.70 | 18.00 | 2.35 | 2.65 | 5.00 | 5.90 | |
| SPWSQ14000 | M14 | 14.20 | 14.70 | 21.10 | 2.8 | 3.2 | 6.00 | 7.10 | |
| SPWSQ16000 | M16 | 16.20 | 17.00 | 24.40 | 3.30 | 3.70 | 7.00 | 8.25 | |
| SPWSQ18000 | M18 | 18.20 | 19.00 | 26.40 | 3.30 | 3.70 | 7.00 | 8.25 | |
| SPWSQ20000 | M20 | 20.20 | 21.20 | 30.60 | 4.30 | 4.70 | 9.00 | 10.60 | |
| SPWSQ24000 | M24 | 24.50 | 25.50 | 35.90 | 4.80 | 5.20 | 10.00 | 11.80 | |
| SPWSQ30000 | M30 | 30.50 | 31.70 | 44.10 | 5.80 | 6.20 | 12.00 | 14.20 | |