At Ananka Fasteners Pvt Ltd, we manufacture fasteners to the dimensional requirements of ISO 4033. ISO 4033 specifies hexagon high (style 2) nuts, product grades A and B, thread sizes M5-M36. Style 2 nuts are taller than ISO 4032 (m approx. 0.9d), giving higher stripping strength, used with higher property-class bolts. Equivalent to DIN 934 tall variants / DIN EN ISO 4033.
ISO 4033 specifies hexagon high (style 2) nuts, product grades A and B, thread sizes M5-M36. Style 2 nuts are taller than ISO 4032 (m approx. 0.9d), giving higher stripping strength, used with higher property-class bolts. Equivalent to DIN 934 tall variants / DIN EN ISO 4033.
Hexagon nut, style 2 (high)
Key dimensions for common sizes are listed below.
| Thread size d | Pitch P (mm) | Width across flats s (mm) | Width across corners e (mm) | Thickness m (mm) |
|---|---|---|---|---|
| M5 | 0.8 | 8 | 8.79 | 5.1 |
| M6 | 1.0 | 10 | 11.05 | 5.7 |
| M8 | 1.25 | 13 | 14.38 | 7.5 |
| M10 | 1.5 | 16 | 17.77 | 9.3 |
| M12 | 1.75 | 18 | 20.03 | 12.0 |
| M16 | 2.0 | 24 | 26.75 | 16.4 |
| M20 | 2.5 | 30 | 32.95 | 20.3 |
| M24 | 3.0 | 36 | 39.55 | 23.9 |
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[‘ISO 4032’, ‘DIN 934’, ‘ISO 8673’]
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 4033 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.
ISO 4033 specifies hexagon high (style 2) nuts, product grades A and B, thread sizes M5-M36. Style 2 nuts are taller than ISO 4032 (m approx. 0.9d), giving higher stripping strength, used with higher property-class bolts. Equivalent to DIN 934 tall variants / DIN EN ISO 4033.
Ananka Fasteners manufactures ISO 4033 in sizes from M5–M24. See the Dimensional Table above for the complete size breakdown.
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We produce ISO 4033 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 4033 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 4033 requirement, nominal size, material grade, quantity, inspection requirements and EN 10204 certificate requirements where applicable.
Dimensions compiled per ISO 4033 and industry references; provided for reference only — confirm against the current edition of the standard before design use.
