Metallics TM81LP4M 6-32 x 3/4 in. Truss Head Combo Receptacle Screws - Steel Zinc - Each

Yes. The TM81LP4M is a 6-32 machine screw, which is the standard thread for receptacle and switch mounting yokes and for device/cover plate ears in North American wiring devices. At 3/4 inch long it gives extra reach for setting a device out from a recessed box or over a plaster ring.

For a device sitting flush in a box, the common 1/2 inch screw is usually enough and 3/4 inch may bottom out or leave thread hanging behind the yoke. The 3/4 inch length on the TM81LP4M earns its keep where the box is set back behind drywall or tile, or where a plaster ring or mud ring adds depth and the shorter screw will not reach.

Either one. The head is a combo drive, slotted and Phillips both, so a flat tip or a #2 Phillips works. Handy on a device install where you are already holding one screwdriver.

These are zinc plated steel, which is a mild corrosion coating meant for dry interior work. For exterior, wet locations, or coastal and washdown areas, specify a stainless device screw instead; zinc plating will eventually rust through in those conditions.

A truss head is wide and low, so it spreads the bearing load over a larger area of the yoke or plate and sits nearly flush without needing a countersink. Flat and oval heads expect a countersunk hole to seat properly. If you are fastening through a flat, unchamfered hole in a device ear or a mounting strap, the truss head is the one that seats correctly.

Metallics part number TM81LP4M. That is the 6-32 by 3/4 inch truss head combination drive receptacle screw in zinc plated steel, made in the USA.

They are machine-threaded 6-32 fasteners, so they will thread any tapped 6-32 hole, including device straps, cover plates, and small panel hardware. For an equipment grounding connection, though, use a listed green ground screw rather than a plain zinc plated device screw.