M3.2×50-65 S410 White Passivated Special Drive Bit Screw

Product Overview
This product is an extended countersunk self‑tapping screw made of S410 stainless steel, specification M3.2, with lengths covering 50–65 mm. The head features a PZ Pozidriv recess with an identification dot, and the surface is treated with white passivation. It has a fully threaded sharp‑point structure. Combining high‑hardness self‑tapping capability with basic rust protection, it is suitable for multi‑layer fastening of thick panels, making it a cost‑effective general‑purpose fastener for home renovation, doors and windows, and light metal assembly.

Product Applications
Doors and Windows Industry: Extended fixing of aluminium/uPVC window sub‑frames, glass beads, and aluminium profiles for sunrooms.
Home Decoration: Deep fastening into multi‑layer wall panels, light‑gauge steel framing, and thick blockboard.
Wood‑Steel Composites: Connecting solid wood joists with light steel framing and preservative‑treated timber projects.
Furniture / Light Metals: Assembly of thick‑panel cabinets, indoor thin metal enclosures, and shelving units.
Applicable Environment: Suitable for dry indoor and mildly humid environments. For coastal areas or long‑term outdoor exposure, 304 stainless steel screws are recommended.