Metallics JPMP39 Screws 10-24 X 1/2 Pn Ph MS St-zn (Jar 100)
https://nsiindustries.com/product/10-24-x-1-2-in-pan-head-phillips-machine-screws-steel-zinc-100qty/
These pan head Phillips screws have finer threads than typical screws, requiring a pre-drilled hole and are perfect for joining metal parts in machinery and construction.