Metallics JFWP18 Screws 8 X 3/4 Fh Ph WS St-zn (Jar 100)
https://nsiindustries.com/product/8-x-3-4-in-flat-head-phillips-wood-screws-steel-zinc-100qty/
This wood screw will produce a mating thread when assembled into wood or other resilient materials.