At Ananka Fasteners Pvt Ltd, we manufacture fasteners to the dimensional requirements of DIN 7504K/M/MZ/MH/O/OH/OZ. Self-drilling (self-tapping) screws with a drill point, aligned with ISO 15480/15481/15482. Form K = hex head, Form M / MZ / MH = cross- or Torx-recessed countersunk head, Form O / OH / OZ = cross- or Torx-recessed raised countersunk head. The screw drills and taps its own hole in sheet metal in one operation; sizes are keyed to drilling capacity rather than a machine-screw thread class.
Self-drilling (self-tapping) screws with a drill point, aligned with ISO 15480/15481/15482. Form K = hex head, Form M / MZ / MH = cross- or Torx-recessed countersunk head, Form O / OH / OZ = cross- or Torx-recessed raised countersunk head. The screw drills and taps its own hole in sheet metal in one operation; sizes are keyed to drilling capacity rather than a machine-screw thread class.
Self-drilling screw (hex, countersunk and raised-countersunk heads)
Key dimensions for common sizes are listed below.
| Nominal size | Thread dia d (mm) | Thread pitch (mm) | Drill point capacity, steel (mm) |
|---|---|---|---|
| ST3.5 | 3.5 | 1.27 | 0.7-2.25 |
| ST3.9 | 3.9 | 1.31 | 0.7-2.5 |
| ST4.2 | 4.2 | 1.41 | 0.7-3.0 |
| ST4.8 | 4.8 | 1.59 | 1.75-4.0 |
| ST5.5 | 5.5 | 1.81 | 2.0-5.0 |
| ST6.3 | 6.3 | 1.81 | 3.0-6.0 |
Self-tapping ST thread per ISO 1478 / DIN EN ISO 1478; no ISO 6g class applies
[‘ISO 15480’, ‘ISO 15481’, ‘ISO 15482’, ‘DIN 7981’, ‘DIN 7976’]
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 7504K/M/MZ/MH/O/OH/OZ 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.
Self-drilling (self-tapping) screws with a drill point, aligned with ISO 15480/15481/15482. Form K = hex head, Form M / MZ / MH = cross- or Torx-recessed countersunk head, Form O / OH / OZ = cross- or Torx-recessed raised countersunk head. The screw drills and taps its own hole in sheet metal in one operation; sizes are keyed to drilling capacity rather than a machine-screw thread class.
Ananka Fasteners manufactures DIN 7504K/M/MZ/MH/O/OH/OZ in sizes from ST3.5–ST6.3. See the Dimensional Table above for the complete size breakdown.
Self-tapping ST thread per ISO 1478 / DIN EN ISO 1478; no ISO 6g class applies
We produce DIN 7504K/M/MZ/MH/O/OH/OZ 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 7504K/M/MZ/MH/O/OH/OZ 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 7504K/M/MZ/MH/O/OH/OZ requirement, nominal size, material grade, quantity, inspection requirements and EN 10204 certificate requirements where applicable.
Dimensions compiled per DIN 7504K/M/MZ/MH/O/OH/OZ and industry references; provided for reference only — confirm against the current edition of the standard before design use.
