DIN 7500M Cross Recessed Countersunk Head Thread Rolling Screws
DIN 7500M cross recessed countersunk head thread rolling screws with metric thread, Type M countersunk head acc. to DIN 965, M2–M10 — flush-seated thread forming, with the collected per-size tables: pitch, b min, d k, k and recess number.
Last updated: 2026-11
Specifications
DIN 7500M is the flush-head sibling of DIN 7500C: the same thread-rolling machine screw — full metric thread that forms its own mating thread in a drilled ductile hole — with a countersunk head per DIN 965 (Type M on the collected page) so the finished joint is flush. That combination covers the sheet-metal and housing work where a pan head would snag, interfere with a sliding part, or show: covers, panels, guides, and any assembled pair where the fastener must sit below or level with the surface. The drive is the same cross-recess family, Pozidriv Z per the collected page's note, with the recess number (1–4) following the size ladder. The collected tables run M2 to M10 with pitch, minimum thread length b, head diameter d k (max/min) and head height k — the countersunk series prints k as a max only, per the source. Everything said about the forming joint for DIN 7500C applies: ductile hosts (steel sheet, aluminium, brass, die-castings), a drill-sized hole, a work-hardened burr-free thread, and full serviceability with ordinary M-screws afterwards. Property classes and finishes stay per RFQ.
| Standard | DIN 7500M — cross recessed countersunk head thread rolling screws, Type M countersunk head acc. to DIN 965 (as printed on the collected page), Pozidriv cross recess Z |
|---|---|
| Series | M2 – M10 (three source column groups: M2/M2.5/M3, (M3.5)/M4/M5, M6/M8/M10; parenthesized non-preferred sizes) |
| Tabulated geometry | Per size: pitch P (0.4–1.5), b min (16–40), d k (max/min, 3.5–18), k (max, printed max-only in the source), Socket No. (1–4) |
| Head seat | Countersunk head, flush in a prepared countersink — the flush alternative to the pan-head DIN 7500C; countersink angle preparation follows the DIN 965 head form |
| Property classes / finishes | Not tabulated by the collected specification — per RFQ (state host material and hole at quotation) |
| Attribute | M2 | M2.5 | M3 |
|---|---|---|---|
| P — Pitch | 0.4 | 0.45 | 0.5 |
| b — min | 16 | 18 | 19 |
| d k — max | 3.8 | 4.7 | 5.5 |
| min | 3.5 | 4.4 | 5.3 |
| k — max | 1.2 | 1.5 | 1.65 |
| Socket No. | 1 | 1 | 1 |
| Attribute | (M3.5) | M4 | M5 |
|---|---|---|---|
| P — Pitch | 0.6 | 0.7 | 0.8 |
| b — min | 20 | 22 | 25 |
| d k — max | 6.5 | 7.5 | 9.2 |
| min | 6.14 | 7.14 | 8.84 |
| k — max | 1.93 | 2.2 | 2.5 |
| Socket No. | 2 | 2 | 2 |
| Attribute | M6 | M8 | M10 |
|---|---|---|---|
| P — Pitch | 1 | 1.25 | 1.5 |
| b — min | 28 | 34 | 40 |
| d k — max | 11 | 14.5 | 18 |
| min | 10.57 | 14.07 | 17.57 |
| k — max | 3 | 4 | 5 |
| Socket No. | 3 | 4 | 4 |
Materials
- Material and finish specified per RFQ — name the host material and confirm the countersink preparation so the head seats flush at quotation
Ordering & documentation
Documents
Shipments are backed by Mill Test Certificate (MTC), Dimensional Report, Salt Spray Test Report on request, with full batch traceability from raw material to finished product. Quality management follows the owner-confirmed compliance list: ISO 9001:2015, RoHS, REACH. Exact document sets are confirmed on the order.
Quotation
- The fastener family (DIN 7500M Cross Recessed Countersunk Head Thread Rolling Screws) plus the standard designation from your drawing — DIN / ISO / JIS / ASTM / ANSI, or a drawing for custom parts.
- Size (diameter and length), thread type (metric or inch), property class or grade, and coating or finish.
- Quantity per size and your target delivery date.
- Destination country, and any required documents (for example a mill test certificate) so the quote includes them.
Sample & supply
Minimum order quantity is 10,000 pieces. Stock items run 3–7 days. Quantities or variants outside the standard range are confirmed at quotation.
Storage & shipping
Parts are packed for export and shipped factory-direct to buyers in Europe, Asia, the Americas and the Middle East. Store fasteners dry and protected until installation, and keep coated parts in their packaging until use; specific packing and preservation requirements can be stated on the order and confirmed at quotation.
Frequently asked questions
DIN 7500M (countersunk) or DIN 7500C (pan head) thread-rolling screw?
The joint surface decides. Both screws form the same work-hardened metric thread in the same drilled ductile hole — the tables differ only in the head: DIN 7500C's DIN 7985 pan head stands proud with a rounded, snag-free crown and the largest bearing diameter; DIN 7500M's DIN 965 countersunk head sits flush, at the cost of a prepared countersink in the host and a smaller bearing face that suits harder host material (a countersunk head pulled into soft sheet can pull through). So: pan head for covers and brackets where the bump is acceptable or wanted; countersunk where the surface must ride clean — sliding guides, mating faces, finished panels. Two practical notes from the collected tables: the recess ladder (Socket No. 1–4) and head diameters are size-matched across both types, so drivers and holes carry over; and the countersunk k is printed as a max only in the source — the flush seat is set by the countersink you cut, so state the host thickness and preparation with the RFQ.
What is the MOQ and lead time for this screw type?
The minimum order quantity is 10,000 pieces. Stock items ship in 3–7 days; non-stock items are confirmed at quotation. Common sizes in this screw type are widely stocked; confirm the exact schedule against quantity and size mix at quotation.
Related knowledge
- Thread-Forming vs Thread-Cutting vs Thread-Rolling Self-Tapping Screws: What the Evidence Settles on Base Material
- Screw Family Selection by Base Material: Wood, Machine and Self-Tapping Threads, Engagement and Coating
- Hex Bolts vs Socket Head Cap Screws: What the Evidence Settles on Strength, Clearance and Cost
Request a Quote
Get factory-direct pricing from the manufacturer.
What to include in your inquiry
- ✓ Standard and property class (e.g. DIN 912, ISO 4762, class 8.8) — or a drawing for custom parts.
- ✓ Sizes, lengths and thread type (metric or inch).
- ✓ Quantity per size and your target delivery date.
- ✓ Destination country, plus any coating or finish requirement.
- ✓ Any documents you need with the shipment (e.g. mill test certificate) so the quote includes them.
- ✓ Your inquiry goes straight to the factory team by email and gets a reply within 24 hours.
- ✓ Factory-direct pricing
- ✓ Standard and custom specifications
- ✓ Factory-direct export to buyers in Europe, Asia, the Americas and the Middle East
- ✓ Full fastener family support