M12 x 1.50 x 40 MM (FT) Fine DIN 961 Class 8.8 Hex Cap Screw (Bolt) Zinc
Hex Cap Screws, are similar to hex bolts, but are manufactured with tighter tolerances than hex bolts for socket or wrench tightening, hex cap screws are available in both fully threaded and partial threaded varieties, and in many different materials.