St 3.5 Black Zinc Nickel Plating Ss201 304 316 316l Three Holes H Y Shaped Anti Theft Screw Customized Size And Shape

St 3.5 Black Zinc Nickel Plating  Ss201 304 316 316l  Three Holes H Y Shaped  Anti Theft Screw Customized Size And Shape

This highly customisable anti‑theft screw series is based on an ST 3.5 self‑tapping thread (approx. 3.5mm diameter). The drive can be three holes (tri‑grove), H‑shape, or Y‑shape, depending on your security requirement. The finish is either black zinc plating or nickel plating – black zinc offers a dark, non‑reflective surface, while nickel provides a bright, decorative look. The screws are hardened carbon steel for good mechanical strength. As a customised product, the size, head shape (pan, flat, truss, etc.), and drive geometry can be tailored to OEM specifications. These screws are ideal for self‑tapping assembly into plastic, wood, or thin metal sheets where theft prevention is needed.

• Gaming machine outer casings – three‑hole drive with black finish.

• Automotive aftermarket parts – black zinc matches dark trim.

• Security grilles on public speakers or cameras.

• Customised enclosures for industrial IoT devices.

• Furniture assembly in public spaces (library desks, lecture hall seats).

• ST 3.5 self‑tapping – fast installation without pre‑tapping.

• Three drive geometries – choose the level of security you need.

• Black zinc or nickel finish – aesthetic choice for visible fasteners.

• Fully customisable – we manufacture to your drawing, including non‑standard drives.

• Hardened steel – resists drive stripping and tool attack.