Hexagon Head Setscrews, fully threaded/ Bolts, part threaded with a Reduced Head AF M6 Thread on a 8mm Head AF M8 Thread on a 12mm Head AF M10 Thread on a 14mm Head AF M12 Thread on a 17mm Head AF REDUCED/ SMALL HEADS ARE NOT AS STRONG OR AND DO NOT SPREAD FIXING PRESSURE AS NORMAL HEADED BOLTS/ NUTS/ MACHINE SCREWS/ SOCKET SCREWS WOULD. WE WILL NOT ACCAEPT ANY LIABILITY FOR ANY LOSS OR DAMAGE CAUSED BY USING REDUCED/ SMALL HEADED BOLTS/ NUTS/ MACHINE SCREWS/ SOCKET SCREWS. PLEASE ENSURE USAGE WOULD NOT CAUSE ANY DAMAGE BEFORE FITTING