Metallics SPT400 Screws 6-32 X 1-1/2 Ov Tr Span Switch SS (Clam 50)

A spanner driver is required, and the SPT400 clamshell ships with the 00SP6B spanner insert driver included, so you don't have to source a bit separately. The drive is a spanner (two-hole) type, which is what makes the screw tamper resistant once installed.

Yes. 6-32 is the standard machine screw thread used on receptacle and switch yokes and wall plates in North America, and the SPT400 is a 6-32 thread with 32 threads per inch, so it threads straight into existing device strap holes.

Yes. The SPT400 is made in the United States and is flagged both ARRA compliant and Buy American compliant, which covers the documentation most government, school, and public-agency specs ask for on fasteners.

The SPT400 is 18-8 stainless steel, so it holds up in damp interior rooms, kitchens, mechanical spaces, and covered exterior device locations better than a plated steel plate screw.

Metallics supplies the SPT400 as a 50-piece clamshell, and the order minimum is 50 each. Other sizes and quantities can be requested.

They go on device and switch plates in spaces where you don't want the public opening the plate with a common screwdriver: school corridors, correctional and healthcare facilities, transit areas, apartment common areas, and restrooms. Metallics lists the SPT400 for the electrical, plumbing, heating and air conditioning trades, and because the spanner drive needs the matching two-pin bit, a standard flat or Phillips driver won't back it out.

The head is an oval/pan style, so it sits low and mostly flush against the plate face rather than standing proud like a truss or hex head. That makes it consistent across a facility where plates are standardized, and the stainless finish stays uniform over time.