Carriage Bolt, Metric, Neck Type Square, Basic Material Steel, Material Grade Class 4.6, Fastener Finish Zinc Plated, Dia./Thread Size M5-0.80, Fastener Length 50 mm, Fastener Thread Direction Right Hand, Fastener Thread Type Metric Coarse, DIN 603, Head Dia. 12.45 to 13.55mm, Head Height 3.3 mm, Head Type Round, Square Height 4.10mm, Square Width 5.48mm, Tensile Strength 58,000 psi, Package Quantity 100