Hex Head Cap Screw, System of Measurement Metric, Basic Material Stainless Steel, Material Grade A2, Fastener Finish Plain, Dia./Thread Size M3-0.50, Fastener Length 12 mm, Fastener Thread Direction Right Hand, Fastener Thread Type Metric Coarse, Fastener Thread Style Fully Threaded, Fastener Industry Standards DIN 933, Head Type Hex, Min. Thread Length 12 mm, Head Height 2 mm, Head Width 5.5 mm, Package Quantity 50 Hex Head Cap Screws feature hexagon-shaped heads for socket or wrench tightening. A2 Stainless Steel construction is easy to sanitize and resists corrosion from water, humidity, and oxidizing acids.