... steel, 3. finish: zinc non-standard flat head socket rivets with internal thread1.Standards:DIN ,ANSI/ASME,BS,GB,JIS,Non ... CO.,Ltd.., Ltd. is specialized manufacturing fasteners and accessories with a subsidiary of Shanghai XingRui Bolt Factory. Thecompany is ... operation team. We produce "Jinrui" brand standard parts with the corporate philosophy of "creating first class enterprise andmanufacturing ...