2Hole Pan Security Screws — Rather than a star, hex, or any recognisable single-recess shape, this screw's head carries two round holes that take a special two-pin driver — nothing else, including improvised flat-blade or standard bits, will locate both pins at once, which makes the 2Hole pattern one of the more difficult security drives to defeat without the matching tool. The pan head sits with a shorter, flatter profile than a domed button head but still stands proud of the surface, giving a solid bearing face and a distinct, recognisable finish that's common across this whole 2Hole range. It's a machine-thread screw, made to run into an existing tapped hole, nut, or insert rather than form its own thread. This drive pattern is specified where an unusually high degree of tamper resistance is wanted — secure equipment enclosures, transport and public infrastructure, controlled-access environments, and any fitting where hexalobular or hex-socket security recesses, which are at least visually recognisable, aren't considered restrictive enough. Grade choice tracks the operating environment rather than the drive pattern: A2 stainless is suitable for indoor and sheltered fittings, while A4 is worth the extra cost outdoors, near the coast, or wherever washdown or de-icing salt exposure is routine, since the added molybdenum resists pitting corrosion far better over the long term. There's no ISO or DIN standard covering this proprietary two-hole recess; it's a manufacturer-specific security pattern, and its matching drive bits are generally only available from the same source as the screws. Choosing head style within this range comes down to whether a proud pan head or a flush countersunk profile suits the application — the countersunk and raised countersunk versions share the same recess and thread options but change how the fixing sits relative to the surrounding surface. Size and length follow standard machine-screw practice: matched to the material thickness being fixed and the thread engagement available in the tapped hole, nut, or insert being used.
FAQs
Is there a self-tapping version?
Yes, 2Hole Pan Self Tapping Security Screws provide the same head and drive with a thread-forming point for fixing directly into plastic, timber, or thin metal.
What tool drives this screw?
A 2Hole Security Drive Bit, sized to match the pin spacing and hole diameter of the screw.
Can 2Hole screws be specified alongside the hexalobular+pin or hex-socket+pin ranges on the same job?
Yes, as separate specification choices, but the tooling isn't interchangeable between the three drive families, so standardising on one drive type across a site simplifies which bits need to be kept on hand.