Hex Head Cap Screw System of Measurement Metric Basic Material Steel Material Grade Class 8.8 Fastener Finish Zinc Yellow Dia./Thread Size M12-1.50 Fastener Length 20 mm Fastener Thread Direction Right Hand Fastener Thread Type Metric Extra Fine Fastener Thread Style Fully Threaded Fastener Industry Standards ISO 8676 Head Type Hex Min Thread Length 20 mm Head Height 7.5 mm Head Width 19 mm Package Quantity 50