Metallics JRWS27V 10 x 3/4 in. Round Washer Head Combo Sharp Point Tapping Screws - Steel Zinc - Each

Sharp point. The JRWS27V is a sharp point tapping screw, so it starts on its own in wood and light-gauge material rather than needing a pilot hole or a drill point. For heavier structural steel you'd want a self-drilling (drill point) screw instead.

At 3/4 inch of length, the JRWS27V is sized for fastening something thin directly to the stud face, such as a device box ear, a strap, a clamp, or a plate. It gives you enough thread bite into wood without punching out the far side of a 1x or through light-gauge framing. If you're going through furring, drywall, or any added thickness first, pick a longer screw so you still get purchase in the framing.

Either one. The JRWS27V has a combo recess, so it drives with a Phillips bit or a square (Robertson) bit. Handy on a crew where not everyone carries the same bits, and the square drive gives you less cam-out when you're running them overhead into studs.

The round washer head on the JRWS27V spreads the clamp load over a wider footprint under the head. That's what you want when you're fastening through sheet goods, straps, plates, or soft material that a pan head would pull through. It seats on the surface rather than countersinking, so it isn't the screw to use where you need a flush finish.

These are steel with a zinc plating, which handles dry interior and protected work. Zinc plating is not a marine or sustained-wet coating, so for exterior exposure, treated lumber, or wash-down areas, step up to a stainless or coated exterior-rated fastener.

They ship in a jar, 500 screws, which is the format most electricians and maintenance techs keep on the van for daily device, strap, and bracket work. The jar keeps them sorted on a shelf alongside other sizes instead of loose in a bucket.

Yes, the JRWS27V round washer head combo tapping screws are USA made, which matters on public and institutional jobs that carry domestic sourcing requirements in the spec.