We are produce kinds of the fastener .Like the selftapping srews ,selfdrilling screws chipboards screw wooden screws ,we can provide you the size of the M3-M6 in any length inquiry .Now our production is around china ,we want to open the oversea market ,and now we are willing to give you the best price and hign quality prodcuts ,if you are intereste in more information .If you have further inquiry if i can be help .please mail me. We also can produce kinds of the hooks and hingers .