Metallics TP616SBC Screws 14 x 1 Btn Star Pin TR SMS 18-8 (100 pcs)

It's a #14 by 1 inch sheet metal screw with a button head and a pinned star (Torx) drive, made from 18-8 stainless steel. The TP616SBC is packaged 100 pieces to the box. Sheet metal thread means it's cutting its own thread into sheet steel, enclosure panels, or similar thin material rather than threading into a nut.

Yes. The drive is a star (Torx) recess with a pin standing up in the center, so a standard Torx bit won't seat. You need a pin-in Torx bit of the matching size, which has a hole bored down the middle to clear the pin. That pin is the whole point of the fastener, it keeps anyone with a common bit set out of the panel.

18-8 stainless is the usual choice for wet and washdown locations, and that is the material the TP616SBC is made from. It's a good fit for exterior panel covers, outdoor light bases, and damp mechanical rooms where plated steel screws would rust and seize, which matters most on security hardware you may need to remove again years later.

A button head sits on top of the material with a low rounded crown, so the hole doesn't need to be countersunk. The TP616SBC is the right pick when you're fastening into a punched or drilled hole in sheet metal and want the clamp load spread over the surface. If the drawing calls for a flush finish in a countersunk hole, you want a flat head tamper screw instead, not this one.

One box holds 100 screws, so count your openings before ordering. For a job repeating a four-screw cover plate, that's 25 covers per box, and it is worth adding a box over the exact count since a pinned star screw is not something you can pick up locally mid-install.