At Ananka Fasteners Pvt Ltd, we manufacture fasteners to the dimensional requirements of ISO 10670. Conical spring washers (disc/Belleville-type lock washers) for bolted connections, the ISO reference aligned with DIN 6796. The dished profile provides a spring reserve that maintains bolt preload and resists loosening under vibration and thermal cycling.
Conical spring washers (disc/Belleville-type lock washers) for bolted connections, the ISO reference aligned with DIN 6796. The dished profile provides a spring reserve that maintains bolt preload and resists loosening under vibration and thermal cycling.
Conical spring (disc) washer
Key dimensions for common sizes are listed below.
| Nominal size | Inner dia d1 (mm) | Outer dia d2 (mm) | Thickness s (mm) | Height h (mm) |
|---|---|---|---|---|
| M3 | 3.2 | 7 | 0.6 | 0.8 |
| M4 | 4.3 | 9 | 0.8 | 1.0 |
| M5 | 5.3 | 11 | 1.0 | 1.3 |
| M6 | 6.4 | 14 | 1.5 | 1.8 |
| M8 | 8.4 | 18 | 2.0 | 2.4 |
| M10 | 10.5 | 23 | 2.5 | 3.2 |
| M12 | 13 | 29 | 3.0 | 3.95 |
| M16 | 17 | 39 | 4.0 | 5.25 |
| M20 | 21 | 45 | 4.5 | 6.0 |
N/A (washer – no thread)
[‘DIN 6796’, ‘DIN 2093’, ‘ISO 7089’, ‘NF E25-511’]
For the official ISO standards catalogue, see the ISO standards listing. This external reference is provided for standards identification; the purchaser should verify the current edition applicable to the order.
We produce ISO 10670 fasteners in carbon and alloy steel, austenitic, duplex and super-duplex stainless, and high-nickel, titanium and copper alloys — for structural, flanged, 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.
Conical spring washers (disc/Belleville-type lock washers) for bolted connections, the ISO reference aligned with DIN 6796. The dished profile provides a spring reserve that maintains bolt preload and resists loosening under vibration and thermal cycling.
Ananka Fasteners manufactures ISO 10670 in sizes from M3–M20. See the Dimensional Table above for the complete size breakdown.
N/A (washer – no thread)
We produce ISO 10670 fasteners in carbon and alloy steel, austenitic, duplex and super-duplex stainless, and high-nickel, titanium and copper alloys — for structural, flanged, 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 ISO 10670 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: ISO 10670 requirement, nominal size, material grade, quantity, inspection requirements and EN 10204 certificate requirements where applicable.
Dimensions compiled per ISO 10670 and industry references; provided for reference only — confirm against the current edition of the standard before design use.
