These are M3x14mm Button Head Screws from HPI. 
FEATURES:
 Steel construction           Black in color           2.0mm hex socket, order GPMR8011 if wrench is needed 
YOU WILL RECEIVE:
 Ten M3x14mm button head screws 
SPECS:
    Diameter: 3mm           Length: 14mm COMMENTS; Can be used wherever this size screw is needed                                                                     lmm 7.16.10