Model: 316 Countersunk Head Screws. M2(2mm) / M2.5(2.5mm) / M3(3mm) / M4(4mm) / M5(5mm) / M6(6mm) / M8(8mm). Head: Countersunk. Material: 316 Stainless Steel. The products are made of 316 stainless steel, which has good corrosion and oxidation resistance and heat resistance, high strength and high toughness.
eBay