DIN 7981 Pan Head Tapping Screws (ISO 7049)
Cross recessed pan head tapping screws, Form C, per ISO 7049 — the current designation DIN 7981 C folds into — ST2.2 to ST6.3 in case-hardening steel per ISO 2702 or A2 stainless, thread per ISO 1478. The self-tapping sheet-metal screw with the tallest bearing head.
Last updated: 2026-11
Specifications
The pan head tapping screw is the sheet-metal workhorse: it cuts its own thread into sheet steel, plastic or plywood, while its rounded pan head gives the largest bearing surface of the tapping-head styles — useful when the joint sits in thin material that cannot take a countersink. The collected ISO 7049 table runs ST2.2 through ST6.3 in case-hardening steel per ISO 2702 or A2 stainless, with the tapping thread per ISO 1478 and cross recess types H and Z by size. At ST4.2 the head measures 8.2 mm across (k 3.05 mm), carries a No. 2 cross recess (Type H depth ≈4.6 mm), and the Form C point (y max 3.7 mm) is the standard sharp point that starts cutting without a pilot in most sheet gauges. The DIN 7981 designation survives as DIN 7981 C; the collected table is titled to ISO 7049, which names DIN 7981 C as its equivalent norm — order whichever your drawing prints.
| Standard | ISO 7049 — pan head tapping screws, cross recess H and Z, Form C; DIN 7981 C is the equivalent national designation |
|---|---|
| Size range | ST2.2 – ST6.3 |
| Dimensions at ST4.2 | dk (head diameter) nominal=max 8.2 mm (min 7.84 mm); k (head height) nominal=max 3.05 mm (min 2.75 mm); r max 0.6 mm; cross recess No. 2; Type H m ≈4.6 mm; P 1.4 mm |
| Point (Form C) | Sharp-point forming tap; y max 3.7 mm (Type C), 2.8 mm (Type F) at ST4.2 |
| Materials | Case-hardening steel per ISO 2702; stainless A2 |
| Thread | Tapping thread per ISO 1478 |
Materials
- Steel
- Stainless steel
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 7981 Pan Head Tapping Screws (ISO 7049)) 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
Which head style of the 7981/7982/7983 tapping series should I pick?
Pick by how the head meets the surface. The pan head (DIN 7981 / ISO 7049) sits proud and gives the widest bearing face — the choice on thin sheet and soft substrates where a countersink would pull through. The countersunk (DIN 7982 / ISO 7050) sits flush in a prepared 90° seat. The raised countersunk (DIN 7983 / ISO 7051) sits flush with a low dome above it — flush enough for clearance, with a neater finish than bare countersunk. All three run the same ST2.2–ST6.3 tapping sizes in the same makings, so the head, not the thread, is the selection decision.
What is the MOQ and lead time for these screws?
Minimum order quantity is 10,000 pieces per item. Stocked sizes ship in 3–7 days; non-stock diameters, lengths or finishes are quoted with a confirmed schedule. Common sizes in this designation are widely stocked — confirm the exact schedule against quantity and size mix at quotation.
What should an RFQ for these screws state?
State the standard designation (for example DIN 914, DIN 915, DIN 7981/7982/7983 — or the ISO designation your drawing prints), thread or tapping size, length or head dimension, strength class or material (such as 45H, 4.8, A2-70, A4-80 or brass), finish (black oxide, zinc plated, or plain), required certificates such as a mill test report per EN 10204 3.1, and quantity per size — plus destination country.
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