Carriage Bolt Metric Neck Type Square Basic Material Stainless Steel Material Grade A2 Fastener Finish Plain Dia/Thread Size M8-1.25 Fastener Length 20 mm Fastener Thread Direction Right Hand Fastener Thread Type Metric Coarse DIN 603 Head Dia 19.35 to 20.65mm Head Height 4.88 mm Head Type Round Square Height 5.60mm Square Width 8.58mm Tensile Strength 101 500 psi Package Quantity 50