Specification :
 
Material : Iron
 
Color :Black
 
Hardness : 12.9 Grade
 
Model : M3
Thread diameter: 3mm
Head diameter: 5.5mm
Head Thickness : 3mm
Pitch: 0.5mm
Hexagon wrench size: 2mm
Screws length optional (Unit :mm): 6/8/12/14/16/18/30/35/40

Note : the screws length less than 30mm it have all through thread, more than 30mm,it have half thread.,details you can see the pictures.
 
 due to the different model, it may have a little different about the thread, please leave a message to us if you want to know the detail about the screws
 
Package included :
 
50pcs Hexagon Screws