At Ananka Fasteners Pvt Ltd, we manufacture fasteners to the dimensional requirements of DIN 921. DIN 921 covers slotted pan head machine screws with a large head – a wider pan head than DIN 85, providing greater bearing area for soft materials, oversized/slotted holes or a decorative finish. Values below are representative nominal head and slot dimensions for the large-head geometry.
DIN 921 covers slotted pan head machine screws with a large head – a wider pan head than DIN 85, providing greater bearing area for soft materials, oversized/slotted holes or a decorative finish. Values below are representative nominal head and slot dimensions for the large-head geometry.
Slotted pan head machine screw with large head
Key dimensions for common sizes are listed below.
| Thread d | Head Dia dk (mm) | Head Height k (mm) | Slot Width n (mm) | Slot Depth t (mm) |
|---|---|---|---|---|
| M3 | 8.0 | 1.8 | 0.8 | 0.8 |
| M4 | 10.0 | 2.4 | 1.2 | 1.1 |
| M5 | 12.5 | 3.0 | 1.2 | 1.3 |
| M6 | 16.0 | 3.6 | 1.6 | 1.6 |
| M8 | 20.0 | 4.8 | 2.0 | 2.0 |
| M10 | 24.0 | 6.0 | 2.5 | 2.4 |
ISO metric coarse thread, tolerance 6g per ISO 965
[‘DIN 920 (slotted pan, small head)’, ‘DIN 922 (slotted pan, small head, full dog point)’, ‘DIN 85 (slotted pan head, standard)’]
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 921 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.
DIN 921 covers slotted pan head machine screws with a large head – a wider pan head than DIN 85, providing greater bearing area for soft materials, oversized/slotted holes or a decorative finish. Values below are representative nominal head and slot dimensions for the large-head geometry.
Ananka Fasteners manufactures DIN 921 in sizes from M3–M10. See the Dimensional Table above for the complete size breakdown.
ISO metric coarse thread, tolerance 6g per ISO 965
We produce DIN 921 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 921 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 921 requirement, nominal size, material grade, quantity, inspection requirements and EN 10204 certificate requirements where applicable.
Dimensions compiled per DIN 921 and industry references; provided for reference only — confirm against the current edition of the standard before design use.
