At Ananka Fasteners Pvt Ltd, we manufacture fasteners to the dimensional requirements of ISO 14587. Hexalobular (six-lobe / TORX drive) socket raised countersunk (oval) head tapping screws, Form C (AB thread) per ISO 1478, sizes ST2.2 to ST6.3. Countersunk portion matches ISO 7050; a raised dome of height f sits above the flat (per ISO 7051).
Hexalobular (six-lobe / TORX drive) socket raised countersunk (oval) head tapping screws, Form C (AB thread) per ISO 1478, sizes ST2.2 to ST6.3. Countersunk portion matches ISO 7050; a raised dome of height f sits above the flat (per ISO 7051).
Hexalobular raised countersunk (oval) head tapping screw
Key dimensions for common sizes are listed below.
| Nominal size ST | Pitch P (mm) | Head dia dk max (mm) | Head height k (mm) | Raised height f (mm) | Lobe drive size |
|---|---|---|---|---|---|
| ST2.2 | 0.8 | 4.3 | 1.3 | 0.5 | T6 |
| ST2.9 | 1.1 | 5.5 | 1.7 | 0.7 | T8 |
| ST3.5 | 1.3 | 6.8 | 2.1 | 0.8 | T15 |
| ST3.9 | 1.3 | 7.5 | 2.3 | 0.9 | T20 |
| ST4.2 | 1.4 | 8.1 | 2.5 | 1.0 | T20 |
| ST4.8 | 1.6 | 9.5 | 3.0 | 1.2 | T25 |
| ST5.5 | 1.8 | 10.8 | 3.4 | 1.3 | T25 |
| ST6.3 | 1.8 | 12.4 | 3.8 | 1.6 | T30 |
Tapping-screw thread per ISO 1478 (ST series)
[‘ISO 7051’, ‘ISO 14585’, ‘ISO 14586’, ‘ISO 1478’]
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 14587 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.
Hexalobular (six-lobe / TORX drive) socket raised countersunk (oval) head tapping screws, Form C (AB thread) per ISO 1478, sizes ST2.2 to ST6.3. Countersunk portion matches ISO 7050; a raised dome of height f sits above the flat (per ISO 7051).
Ananka Fasteners manufactures ISO 14587 in sizes from ST2.2–ST6.3. See the Dimensional Table above for the complete size breakdown.
Tapping-screw thread per ISO 1478 (ST series)
We produce ISO 14587 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 14587 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 14587 requirement, nominal size, material grade, quantity, inspection requirements and EN 10204 certificate requirements where applicable.
Dimensions compiled per ISO 14587 and industry references; provided for reference only — confirm against the current edition of the standard before design use.
