flat head screw Carbon steel material,Nickel planting,used hardware. We are a Japanese funded enterprice located in China,can provide high quality self tapping screws and machine screws with competitive price according to customers' request.From 5-7 June 2013, we will be exhibiting at the“China(GuangZhou)International Fastener Expo 2013″,We cordially invite you to visit our booth.Our booth number ...