Metallics JSTSP15 Screws 8 X 1 Pn Ph TS SS (Jar 100)
https://nsiindustries.com/product/8-x-1-in-pan-head-phillips-tapping-screws-18-8-stainless-100qty/
These pan head tapping screws cut their own threads into a material, but still rquire a pilot hole and are typically used in construction with a variety of materials.