PROLOK, Security screw, Resytork Countersunk, Self tapper, 8 gauge (4.2mm) x 38mm, 2 way, AB type thread, 304 stainless steel, Pack of 25, Includes driver
Red Spaghetti Roll 5.5mm x 50 Metres to suit 6-8 gauge Screws Concrete Wall Plug | eBay
Self Tapper Pan HD Slot Stainless 8G x 1/2" - Classic Fasteners
No.8 Gauge (4.2mm) Archives - Stig Fasteners Ltd
Look up drill size for screws here. | Allfasteners Australia