5.0x50 ZINC constructional screw, flat head with collar (wafer head) TORX 30
FirFirma Killich s.r.o. offers universal wood screws with countersunk head and TORX slot. The assortment of these screws includes zinc-coated (white, yellow) and stainless steel screws. TORX slotted screws are a TORX screwdriver.
