Countersunk Phillips self-drilling screw (SDS) that drills, taps and fastens in one operation in light-gauge steel and aluminium, without a separate pilot hole. The 90° countersunk head seats flush in the material, leaving no projection above the surface for panels, trims and hinges that must close flat.
Supplied in bulk to distributors, importers and hardware brands worldwide, including private-label packaging in the customer's own branding. Non-standard sizes and made-to-drawing variants are produced to order, with a material test certificate on every consignment.
| Product Type | Self-drilling screw (SDS) — 90° countersunk head, Phillips drive |
| Standards | DIN 7504 P, ISO 15482 |
| Material Grades | Case-hardened carbon steel (SAE 1022); SS 410; bi-metal SS 304 with carbon steel drill tip |
| Size Range (Metric) | ST3.5 to ST6.3 (3.5, 3.9, 4.2, 4.8, 5.5, 6.3 mm) |
| Size Range (Imperial) | 6 to 14 |
| Length Range | 13 mm to 100 mm (1/2 |
| Head / Drive Type | 90° countersunk, Phillips PH2 / PH3; drill point No. 2 to No. 5 |
| Finish | Zinc plated, black phosphate, corrosion-resistant organic coating |
| Custom Options | Wing-tip point for timber-to-steel, ribbed underhead, point length, made to drawing |
| Certification | Material Test Certificate, EN 10204 3.1 |
| Packaging | Boxed in standard counts, bulk cartons, or private label to customer specification |
