Metallics WDS20BSS Screws 10 x 3/4 Panck D-Pt TS 410-SS (10000 pcs)

It's a #10 x 3/4 inch self-drilling tapping screw with a drill point, made of 410 stainless steel, sold in a 10,000 piece bulk pack under part number WDS20BSS.

No. The WDS20BSS has a drill point, so it cuts its own hole and taps its own thread in sheet metal in one pass. That's what makes it suited to light-gauge steel work like hanging strut, boxes, and brackets without a separate drilling step.

At 3/4 inch overall, this screw is sized for thin material, typically light-gauge steel studs, metal channel, boxes, and strap. Once the drill point and threads consume the stack, you only have a short grip length, so if you're going through a thicker assembly or into heavier structural steel you want a longer self-drilling screw instead.

410 stainless is a hardenable martensitic grade, which is why it can be made hard enough to form its own thread as a drill-point screw. It gives better corrosion resistance than plain carbon steel and handles damp interiors and sheltered exterior work, but it is not as corrosion resistant as 300-series stainless. For coastal or continuously wet exposure, specify a 300-series or coated fastener.

One pack is 10,000 pieces. That's a contractor or MRO bulk quantity, aimed at crews running sheet metal fastening daily or stockrooms standardizing on a single self-driller size rather than buying small jars per job.