At Ananka Fasteners Pvt Ltd, we manufacture fasteners to the dimensional requirements of DIN 137 A/B. DIN 137 covers light-duty curved and waved spring washers. Form A is curved (single dome) and Form B is waved (multiple waves). Thinner than DIN 128, they provide gentle spring take-up and vibration damping for light loads and delicate assemblies.
DIN 137 covers light-duty curved and waved spring washers. Form A is curved (single dome) and Form B is waved (multiple waves). Thinner than DIN 128, they provide gentle spring take-up and vibration damping for light loads and delicate assemblies.
Light curved (Form A) / waved (Form B) spring washer
Key dimensions for common sizes are listed below.
| Nominal Size | Inside Dia d1 (mm) | Outside Dia d2 (mm) | Thickness s (mm) | Overall Height h (mm) |
|---|---|---|---|---|
| M3 | 3.2 | 8 | 0.5 | 1.6 |
| M4 | 4.3 | 9 | 0.5 | 2.0 |
| M5 | 5.3 | 11 | 0.5 | 2.2 |
| M6 | 6.4 | 12 | 0.5 | 2.6 |
| M8 | 8.4 | 15 | 0.8 | 3.0 |
| M10 | 10.5 | 21 | 1.0 | 4.2 |
| M12 | 13 | 24 | 1.2 | 5.0 |
| M16 | 17 | 30 | 1.6 | 6.4 |
| M20 | 21 | 36 | 1.6 | 7.4 |
N/A – spring washer
Related and equivalent standards include DIN 128 (heavier curved/wave washer), DIN 127 (helical spring washer) and DIN 6796.
For the official DIN standards catalogue, see the DIN standards listing. This external reference is provided for standards identification; the purchaser should verify the current edition applicable to the order.
We produce DIN 137 A/B fasteners in carbon and alloy steel, austenitic and duplex stainless, and high-nickel, titanium and copper alloys — for structural, machinery and process applications worldwide.
For technical documentation and quotations, buyers can also review the Ananka Fasteners manufacturing and supply range or contact the team through the fastener enquiry and technical support page.
Ananka Fasteners supplies every lot with full material traceability and third-party testing on request.
DIN 137 covers light-duty curved and waved spring washers. Form A is curved (single dome) and Form B is waved (multiple waves). Thinner than DIN 128, they provide gentle spring take-up and vibration damping for light loads and delicate assemblies.
Ananka Fasteners manufactures DIN 137 A/B in sizes from M3–M20. See the Dimensional Table above for the complete size breakdown.
N/A – spring washer
We produce DIN 137 A/B fasteners in carbon and alloy steel, austenitic and duplex stainless, and high-nickel, titanium and copper alloys — for structural, machinery and process applications worldwide.
Yes. For a quotation, provide the required nominal size, material grade, quantity and any inspection or certificate requirements.
Need a fastener manufactured to DIN 137 A/B for an industrial project? Send the required fastener type, size, material grade, quantity and certification requirements to Ananka Fasteners. Our team can review the requirement and provide technical and commercial information for standard or custom configurations.
Recommended RFQ details: DIN 137 A/B requirement, nominal size, material grade, quantity, inspection requirements and EN 10204 certificate requirements where applicable.
Dimensions compiled per DIN 137 A/B and industry references; provided for reference only — confirm against the current edition of the standard before design use.
