Metallics JRMP114 Screw 10-32 x 2-1/2 RH PH MS St-Zn (Jar 100)

Yes, if the tapped hole is 10-32, which is the usual thread on steel and cast boxes, mounting ears, and switch/receptacle straps. The JRMP114 is a straight machine screw, not a self-tapping or sheet metal screw, so it needs an existing tapped hole or a nut.

For a plain device-to-box mounting, 2-1/2 inches is far longer than needed. This length is for reaching through stacked spacers, thick plaster rings, deep extension rings, box extenders, or fixture canopies where the screw has to span an air gap before it finds the tapped hole. If you're just screwing a receptacle to a box, a 1-inch or shorter 10-32 is the right call.

Steel with a zinc plating. Zinc plating handles dry indoor and normally dry commercial interiors fine, and gives some protection against incidental moisture. For wet locations, exterior work, or corrosive environments, specify stainless rather than zinc-plated steel.

100 screws in a jar. The jar pack is built for van stock and shop benches where you want to scoop a handful without a bag tearing open in a bin.

Phillips. The JRMP114 has a Phillips recess in a round head, so it drives with a standard #2 Phillips bit rather than a flat blade. If your existing hardware uses combination-head or slotted screws, the driver changes but the 10-32 thread does not.

A round head seats on top of the surface and leaves a domed profile, so it works where you want bearing area on a plate or strap and don't need a flush face. A flat or oval head is what you want in a countersunk hole, such as a cover plate that has to sit flush. The JRMP114 is round head only.

JRMP114 is one specific part: 10-32 by 2-1/2 inch, round head Phillips, zinc-plated steel, 100 to the jar. Other lengths in the same thread carry different Metallics numbers, so order by the length you actually need rather than assuming this part covers a range.