Metallics TP824SOC Screws 10-24 x 1-1/2 OV Span TR MS 18 (100 pcs)

The TP824SOC is a 10-24 x 1-1/2 inch machine screw, so it threads directly into any 10-24 tapped hole or 10-24 nut. The 24 is threads per inch on a #10 diameter, which is the coarse machine screw thread, not a sheet metal or self-tapping point, so you need an existing tapped hole or a nut behind the work.

It takes a spanner (snake-eye) bit, not a Phillips or Torx. The head is drilled with two round holes that a two-pin spanner driver engages. Buy the matching spanner bit size along with the screws, because a standard screwdriver will not turn them, which is the whole point of the tamper-resistant head.

Spanner-drive screws stop casual removal of covers and plates in restrooms, corridors, schools, transit areas and detention-adjacent spaces where a standard slotted or Phillips screw can be backed out with a coin or pocket knife. The TP824SOC is a 10-24 x 1-1/2 inch machine screw in that drive, so facility and MRO buyers can standardize one tamper-resistant fastener across device covers and similar 10-24 tapped hardware.

For a typical switch or receptacle plate it is, since those usually take a 1/2 to 3/4 inch screw. The 1-1/2 inch length on the TP824SOC is meant for thicker assemblies, stacked gaskets, weatherproof covers, spacers or deep mounting through a plate and into a tapped strap. Measure your stack-up before ordering; if you only need to pick up a device strap, a shorter 10-24 is the right call.

They are packed 100 pieces per box under part number TP824SOC, which is a practical count for a contractor doing a full floor of covers or a property manager restocking a shop. There is no loose-piece option, so order in multiples of 100.