Metallics JTRM89 Screw 8-32 x 2 Round Head Tri-Drive Machine Screws Zinc USA (Jar 100)
https://nsiindustries.com/product/8-32-x-2-in-round-head-tri-drive-machine-screws-steel-zinc-100qty/
These screws have finer threads than typical screws, requiring a pre-drilled hole and are perfect for joining metal parts in machinery and construction.