Spring Washer (DIN 127)
Equivalent Standard: ISO 7090
Helical spring washers from BRK Industries are mostly used to secure the loose components of machines and electrical equipment tightly. With its very high bolt tension per unit of applied torque, the screws protect the equipment from vibrations. It is available in stainless steel, carbon steel, and alloy steel to bear more wear and tear while also making it more corrosion resistant. These spring washers are one of the oldest fasteners still in use. They have been used for more than 100 years to build the equipment of ships.
Apart from their anti-loosening property, these screws offer several other notable advantages like providing a consistent torque control and load distribution across the bearing surface. These screws can also be considered as an excellent locking device, which can be used on hardened faying surfaces. The split in the coil absorbs any shock on the surface without transmitting any of the effects onto the equipment. The split is also responsible for resisting any back-off rotation of the screws.
- DIN 127
- Quality: 140HV, 200HV & 300HV
- Coating: HOT DIP GALV., ZINC PLATED, DACROMET, GEOMET, BLACK
- Thread: METRIC



DIN 127
Metric DIN 127 Helical Spring Split Lock Washers are commonly used metric lock washers – It is a split metal ring that is bent into a helical shape. Split Lock Washers are a left hand helix and allow the nut to be tightened in a right hand direction only. When compressed by tightening the nut, the washer bites into the substrate and exerts a spring force between the bolt and the substrate creating frictional resistance to rotation. DIN 127 are available in two forms, type A and type B. Type DIN 127 A have bent up tang at both ends of the washer. Type B simply have square/straight ends. BRK Industries offers over 500,000 unique fastener products from stock in inch and metric standard in a variety of materials and finishes. The following sizes of DIN 127 B Helical Spring Lock Washers are available for immediate shipping from stock: Diameters ranging from M3 to M72 in steel and ainless steel 301, A4 and 316Ti. View parts by clicking on the following link: Helical Spring Lock Washers DIN 127.


Technical Specification for DIN 127 Spring Washer
| d Nom. | M6 | M8 | M10 | M12 | M14 | M16 | M18 | M20 | M22 |
| d1 | 6.1 | 8.1 | 10.2 | 12.2 | 14.2 | 16.2 | 18.2 | 20.2 | 22.5 |
| d2 | 11.8 | 14.8 | 18.1 | 21.1 | 24.1 | 27.4 | 29.4 | 33.6 | 35.9 |
| s | 1.6 | 2 | 2.2 | 2.5 | 3 | 3.5 | 3.5 | 4 | 4 |
| KG/1000 PCS | 0.830 | 1.600 | 2.530 | 3.820 | 6.010 | 8.910 | 9.730 | 15.20 | 16.50 |
| d Nom. | M24 | M27 | M30 | M36 | M39 | M42 | M45 | M48 | M52 |
| d1 | 24.5 | 27.5 | 30.5 | 36.5 | 39.5 | 42.5 | 45.5 | 49 | 53 |
| d2 | 40 | 43 | 48.2 | 58.2 | 61.2 | 68.2 | 71.2 | 75 | 83 |
| s | 5 | 5 | 6 | 6 | 6 | 7 | 7 | 7 | 8 |
| KG/1000 PCS | 26.20 | 28.70 | 44.30 | 67.30 | 71.70 | 111.00 | 117.00 | 123.00 | 182.00 |
