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 16 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