Hangzhou Hengsheng Fasteners Co., Ltd.  

Product Name: Ind Hex Head Self Drilling Screws with EPDM Washer (PAINT) Model NO.: 12# Grade: 4.8 Standard: DIN Head Style: Hexagonal Connection: Common Bolt Groove: Hexagon Type: Hexagon Head Material: Carbon Steel Transport Package: Carton/Pallets Origin: China Prc HS Code: 7318159001 Product Description C1022 IND.HEX WASHER HEAD (A/F 3/8 )SELF DRILLING SCREWS WITH STEEL AND RUBBER WASHER Z/P