At Ananka Fasteners Pvt Ltd, we manufacture fasteners to the dimensional requirements of DIN 557. Square nuts, product grade C, with a full-height square body giving four wrenching flats and a large bearing face. Used in channels, slotted framing and weldments where a square profile resists rotation. Sizes M5 through M16.
Square nuts, product grade C, with a full-height square body giving four wrenching flats and a large bearing face. Used in channels, slotted framing and weldments where a square profile resists rotation. Sizes M5 through M16.
Square nut
Key dimensions for common sizes are listed below.
| Nominal Size (M) | Width Across Flats s (mm) | Width Across Corners e (mm) | Thickness m (mm) |
|---|---|---|---|
| M5 | 8 | 11.3 | 4.0 |
| M6 | 10 | 14.1 | 5.0 |
| M8 | 13 | 18.4 | 6.5 |
| M10 | 16 | 22.6 | 8.0 |
| M12 | 18 | 25.5 | 10.0 |
| M16 | 24 | 33.9 | 13.0 |
6H (internal metric coarse)
DIN 562 (square thin nut), DIN 928 (square weld nut), ISO 4034 / DIN 934 (hex nut)
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 557 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.
Square nuts, product grade C, with a full-height square body giving four wrenching flats and a large bearing face. Used in channels, slotted framing and weldments where a square profile resists rotation. Sizes M5 through M16.
Ananka Fasteners manufactures DIN 557 in sizes from M5–M16. See the Dimensional Table above for the complete size breakdown.
6H (internal metric coarse)
We produce DIN 557 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 557 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 557 requirement, nominal size, material grade, quantity, inspection requirements and EN 10204 certificate requirements where applicable.
Dimensions compiled per DIN 557 and industry references; provided for reference only — confirm against the current edition of the standard before design use.
