DIN480 square head bolt with collar and half dog point

        DIN 480 

        *All measurements in millimeters (mm)*

        d z3 d2 e=d1 s k
        M10 2.5 7 13 10 13
        M12 3 8.5 17 13 16
        M16 4 12 22 16 20
        M20 5 15 28 21 25

         All information is strictly informative