Metallics JRWS10M 8 x 1-1/4 in. Round Washer Head Combo Sharp Point Tapping Screws - Steel Zinc - Each

No. These are sharp point tapping screws, so they pierce and form their own thread in sheet metal, thin steel, or wood without a pilot hole. For thicker or harder steel you would want a self-drilling (drill point) screw instead, since a sharp point will walk rather than cut.

The JRWS10M is a combo drive head, so it takes either a Phillips bit or a square (Robertson) bit. On a crew where some guys run #2 Phillips and others run square drive, nobody has to swap bits. The combo recess also gives you a second chance at purchase if one recess starts to cam out.

It sits proud, not flush. The round washer head is a built-in integral washer that spreads clamp load over a wider bearing surface, which is what you want when fastening thin material, panel, or a strap that a plain pan head could pull through. If you need the fastener to finish flush with the surface, a flat or bugle head screw is the right choice instead.

The JRWS10M is steel with a zinc plating, which handles dry interior and lightly protected work. Zinc plating is a mild corrosion coating, not a marine or treated-lumber grade finish, so for sustained exterior exposure, wet locations, or contact with pressure-treated wood, specify a stainless or heavier coated screw.

It is a #8 diameter screw, 1-1/4 inches long overall. With the washer head bearing on top, you get roughly an inch of thread into the substrate after passing through a thin panel or strap, which is enough bite for sheet metal, wood blocking, or framing anchors on typical electrical rough-in work.

Yes, the JRWS10M is made in the USA. That matters on government, institutional, and some utility work where domestic-origin fasteners are called out on the submittal.

They ship in a jar, 1000 pieces. That is a bulk MRO pack rather than a small blister card, so it suits electrical contractors and maintenance shops consuming screws across many openings or devices rather than someone needing a handful.