Y-shaped Triangular Anti Theft Metal Screw With Pin M3 M4 M5 Super Duplex Stainless Steel Dss

This advanced security screw combines a Y‑shaped (triangular) drive with a central pin – often called “Y‑type pin‑in‑torx” or simply “triangular with pin”. The pin blocks standard triangular bits, requiring a special hollowed bit. Manufactured from Super Duplex Stainless Steel (DSS) , which offers superior strength and exceptional resistance to pitting, crevice corrosion, and stress corrosion cracking – far superior to 316. Sizes available: M3, M4, M5. The screw is ideal for harsh environments where both anti‑theft and extreme corrosion resistance are demanded. The Y‑shaped drive provides three points of contact for high torque transmission.

• Offshore platform equipment – DSS resists seawater chloride attack.

• Chemical processing plants – exposure to acids and high chlorides.

• Desalination plant control cabinets and access covers.

• Bridge and coastal infrastructure inspection panels.

• Swimming pool and water treatment equipment.

• Y‑shaped drive with pin – two‑layer security: unusual recess plus central obstruction.

• Super Duplex material – exceptional chloride resistance and high tensile strength (>800 MPa).

• High torque capability – three contact points distribute load.

• Suitable for extreme environments – offshore, chemical, marine.

• Available in M3–M5 – common sizes for instrumentation and panels.