... ,6.8,8.8,9.8..... DRYWALL SCREW,WOOD SCREW,CHIPBOARD SCREW. A good non-standard fastenerS manufacturer ... tapping threads "A","AB", Threads for chipboard screw,wood screw,drywall screw;Type "M","UNC","UNF","BSW"threads ... ,its G.W.:1.13T-1.27T 5)20 pallets form a 20 GP container . G.W. for ... most of places such as drywall,concrete,chipboard,machine,wood...2) Main export market:North America,South America, ...