Hardened wood screws for furniture, cabinets, decking and timber construction: double-countersunk chipboard screws with Pozi or Torx drive, wafer-head screws and long structural wood screws, 3.0 to 6.0 mm diameter. Case-hardened carbon steel with yellow zinc, blue zinc or zinc-nickel finish; zinc-nickel is recommended for treated timber and outdoor use.
| Product / standard | Sizes | Grades | Material | Finishes | MOQ |
|---|---|---|---|---|---|
| DIN 7505 (type) Chipboard Screw | 3.0 – 6.0 mm | Case hardened | Carbon steel C1022; Stainless 410 / 304 | Zinc plated, Zinc-nickel | 500 pcs / size |
Zinc-nickel and zinc are plated on our own line in Ningbo. Other finishes are applied by specialist coaters to the relevant standard.
| Finish | Applied | Notes |
|---|---|---|
| Zinc plated | Our own line | Clear/blue, yellow or black passivation |
| Zinc-nickel | Our own line | 12–15 µm, clear or black passivation; 1,000 h (12 µm) to 1,440 h (15 µm) neutral salt spray |
For property class 10.9 and above, choose zinc flake, or zinc-nickel with hydrogen-embrittlement relief agreed at order stage.

Send sizes and quantities — we reply with price, finish options and lead time within 24 hours.