self drilling roofing screws hex washer head with EPDM washer self-drilling concrete screws from Zhejiang China bottom price

    Professional producer of fasteners from year 2007 , main produce self drilling screw ,roofing screw ,  self tapping screw , machine screw , drywall screw , wood screw , chipboard screw . Variety of complete kinds , reliable quality , compeitive price  . Welcome to enquiry more info !    Product info of head self drilling screw

Diameter	M3.5-M6.3,  6#-14#
Length	6.0mm-130mm, 1/2”-5”
Standard	ISO,GB,DIN,JIS,ANSI,BSW
Material	carbon steel/stainless steel
Surface finish:	wax, zinc plated, trivalent chromium blue white zinc, brass plated, phosphate, mechanical zinc, hot-dip galvanized, dacromet
Head Code	CSK, pan head, truss head, hexagon head, round head, oval head in cross recessed, slotted
Thread Code	full thread and half thread

  Company info :        Zhejiang Tianyuan Metal Products Co.,Ltd set up in Mar.2007,our workshop covers 10100 square meters ,which locates in Fangjiadai Road ,Daqiao Industrial Zone,Haiyan,Jiaxing City with beatiful scenes and convenient transportation.         Our company focus on the development/producing and selling of fasteners and metal parts.Fastners cover DIN,GB,JIS,ANST,BSW etc.Mainly closet bolts,self tapping screw,machine screw ,wood screw,rivet screw,nut,rivet nut, processing non-standard parts. Our products are being exported to the USA,Cannada,Brazil,EU,The South East Country/Israel etc.  Annual exporting value reaches 5million USD.   Factory show :       Certificates:  Our screw :    Contact :