BARREL NUT,BOLTS AND NUTS 1.ISO, ... 4.8 ,6.8,8.8,9.8.... BARREL NUT,BOLTS AND NUTS SCREWS,BLIND NUTS . A ... tapping threads "A","AB", Threads for chipboard screw,wood screw,drywall screw;Type "M","UNC","UNF","BSW"threads for ... Weight and Measurment 1)Quantity in a plastic bag as per Screw's Size; 2)it is packed ... manufacturer with more than 20 years experiences in screw,bolt,nut,washer,rivet, stud, pin,wrench ...