DIN standard Fastener 1.Description:DIN440 For wood constructions round washers 2.Material:carbon steel 3.Size:M6-M48 DIN ... standard Fastener1.Description:DIN440 For wood constructions round washers2.Standard:DIN,ANSI,BSW,GB3.Material:carbon steel4.Grade ... 1701-1702, Guomao Mansion,700 Yangming West Rd, Yuyao, Zhejiang,China Tel:86-0574-6285 6895/6897, Fax:86-0574-62856896website ...