DIN 137B Wave Spring Washers
M3 - M36
Spring steel
DIN 137B covers wave spring washers — waved across the section into three crests, giving more spring travel than the curved form A. We supply DIN 137B washers across a range of metric sizes.
Also known as: wave washers, wavy washers, crinkle washers.
DIN 137B dimensions
| Bolt Size | Inside Diameter | Outside Diameter | Height (max) | Thickness |
|---|---|---|---|---|
| M3 | 3.2mm | 8mm | 1.6mm | 0.5mm |
| M3.5 | 3.7mm | 8mm | 1.8mm | 0.5mm |
| M4 | 4.3mm | 9mm | 2mm | 0.5mm |
| M5 | 5.3mm | 11mm | 2.2mm | 0.5mm |
| M6 | 6.4mm | 12mm | 2.6mm | 0.5mm |
| M7 | 7.4mm | 14mm | 3mm | 0.8mm |
| M8 | 8.4mm | 15mm | 3mm | 0.8mm |
| M10 | 10.5mm | 21mm | 4.2mm | 1mm |
| M12 | 13mm | 24mm | 5mm | 1.2mm |
| M14 | 15mm | 28mm | 6mm | 1.6mm |
| M16 | 17mm | 30mm | 6.4mm | 1.6mm |
| M18 | 19mm | 34mm | 6.6mm | 1.6mm |
| M20 | 21mm | 36mm | 7.4mm | 1.6mm |
| M22 | 23mm | 40mm | 7.8mm | 1.8mm |
| M24 | 25mm | 44mm | 8.2mm | 1.8mm |
| M27 | 28mm | 50mm | 9.4mm | 2mm |
| M30 | 31mm | 56mm | 10mm | 2.2mm |
| M33 | 34mm | 60mm | 10.6mm | 2.5mm |
| M36 | 37mm | 68mm | 11.6mm | 2.5mm |
Materials & strength
Wave spring action
Multiple crests share the spring load around the joint and increase available travel.
Frequently asked
What is the difference between DIN 137A and DIN 137B?
Form A is curved in a single arc; form B is waved into multiple crests. The wave form gives more deflection and a more even load distribution around the washer.
Need DIN 137B in a non-standard size or material?
Send us your drawing — specials quoted within 24 hours.