At Ananka Fasteners Pvt Ltd, we manufacture fasteners to the dimensional requirements of DIN 986. Prevailing torque type hexagon domed (acorn/cap) nuts with non-metallic (nylon) insert. Combines a closed dome that covers the bolt end for a finished appearance with a polyamide ring that provides self-locking. Thread M4-M20, coarse pitch.
Prevailing torque type hexagon domed (acorn/cap) nuts with non-metallic (nylon) insert. Combines a closed dome that covers the bolt end for a finished appearance with a polyamide ring that provides self-locking. Thread M4-M20, coarse pitch.
domed cap nut with nylon insert
Key dimensions for common sizes are listed below.
| Size | Width across flats s (mm) | Width across corners e (mm) | Total height h (mm) |
|---|---|---|---|
| M4 | 7.0 | 7.74 | 9.6 |
| M5 | 8.0 | 8.87 | 10.5 |
| M6 | 10.0 | 11.05 | 12.0 |
| M8 | 13.0 | 14.38 | 14.0 |
| M10 | 17.0 | 18.90 | 18.1 |
| M12 | 19.0 | 21.10 | 22.5 |
| M16 | 24.0 | 26.75 | 27.5 |
| M20 | 30.0 | 32.95 | 35.0 |
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[‘DIN 1587’, ‘DIN 985’, ‘DIN 917’, ‘ISO 7040’]
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 986 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.
Prevailing torque type hexagon domed (acorn/cap) nuts with non-metallic (nylon) insert. Combines a closed dome that covers the bolt end for a finished appearance with a polyamide ring that provides self-locking. Thread M4-M20, coarse pitch.
Ananka Fasteners manufactures DIN 986 in sizes from M4–M20. See the Dimensional Table above for the complete size breakdown.
6H
We produce DIN 986 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 DIN 986 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 986 requirement, nominal size, material grade, quantity, inspection requirements and EN 10204 certificate requirements where applicable.
Dimensions compiled per DIN 986 and industry references; provided for reference only — confirm against the current edition of the standard before design use.
