Metallics TP624SFC Screws 10 x 2 PN Span TR SMS 18-8 (100 pcs)

It's a #10 x 2 inch pan head sheet metal screw with a spanner (two-hole) tamper-resistant drive, made from 18-8 stainless steel. Sold 100 pieces to the box, model TP624SFC. The spanner head means it can't be driven or removed with a standard Phillips or slotted bit.

Yes. A spanner (snake eye) drive has two round holes instead of a slot or cross recess, so it takes a matching spanner bit or driver sized to the head. No Phillips, square, or Torx bit will engage it. Order the bit separately if your crew doesn't already carry one, since the screws ship as fasteners only, 100 per box.

18-8 is the common austenitic stainless grade (roughly 18% chromium, 8% nickel) and it resists general atmospheric and freshwater corrosion well, so these #10 x 2 inch screws are a reasonable pick for exterior enclosures, damp mechanical rooms, and coastal-adjacent work where plated steel would rust out. In heavy chloride or pool-chemical exposure, a 316 fastener is the better choice.

Security applications where the fastener itself has to resist removal: mounting electrical enclosure covers, device plates, signage, light fixture trim, grilles, and panels in public corridors, schools, transit areas, and multi-family common spaces. The 2 inch length lets it reach through a cover and into a stud or substrate rather than just sheet metal to sheet metal.

The TP624SFC is a pan head, so it seats on the surface with a low rounded crown and does not sit flush. That's what you want on sheet metal, covers, and brackets where there's no countersink. If the detail calls for the head buried in a countersunk or chamfered hole, you need a flat head tamper-resistant screw instead.

Sheet metal screws have no self-drilling point, so yes, drill or punch a pilot in anything other than thin soft sheet. Size the pilot to the #10 root diameter for your material thickness. In wood framing the thread will bite without a pilot in softwood, but a pilot keeps a 2 inch screw from wandering and reduces the torque on a spanner drive, which has less bit engagement than a cross recess.

Each box holds 100 screws. Figure your count per opening or per cover before ordering so a multi-building standardization doesn't come up short mid-install, since tamper-resistant fasteners aren't something you can pick up locally the way you can a common Phillips SMS.