Metallics TP506SBC Screws 8 x 1 Btn Hx Pin TR SMS 18-8 (100 pcs)

The Metallics TP506SBC is a #8 x 1 inch sheet metal screw with a button head and a pin-in-hex (tamper resistant) drive, made from 18-8 stainless steel. It comes 100 pieces to a pack, and the manufacturer part number is TP506SBC.

Yes. The TP506SBC uses a pin-in-hex drive, so a standard hex key or Allen bit will not seat in it. You need a hex driver with a center hole that clears the pin, sized to the #8 screw's socket. No driver is included with the 100 piece pack, so order bits separately if you don't already keep them on the truck.

18-8 stainless steel, which is the common 300 series austenitic grade used where corrosion resistance matters, so these hold up in exterior and wet interior work far better than plated carbon steel. For chloride exposure (coastal, pool rooms, de-icing salt) 316 is the grade normally specified instead.

It's a tamper resistant fastener for sheet metal and thin panel work where you don't want the public backing the screw out, typical uses being electrical enclosures, device and junction box covers, panel faces, and signage. The sheet metal thread is self-threading into pre-punched or drilled holes in sheet steel and aluminum, and the low button head sits nearly flush without a countersink.

Pin-in-hex, as on the TP506SBC, blocks a plain hex key and is the usual pick for electrical covers and enclosures in public areas. Pin-in-Torx resists wrenching with more drive engagement if you're running them with a power driver at higher torque. Two-hole spanner heads are the more deterrent option for restroom and detention partitions, but they strip more easily. All three need a matching proprietary bit, so pick whichever bit your crews already carry.

One hundred screws per pack. That's a single bulk box rather than a contractor case, so for a large standardization job across many covers or enclosures, size your order in multiples of 100.