... material: steel, 3. finish: zinc non-standard flat head socket rivets with internal thread1.Standards:DIN ,ANSI/ASME,BS,GB,JIS,Non ... Ltd.., Ltd. is specialized manufacturing fasteners and accessories with a subsidiary of Shanghai XingRui Bolt Factory. Thecompany is a private-owned ... located in the well-known Motor City of Shanghai - Malu, Jiading District with afloor area of 20Mu and an effective plant ...