... 3. finish: zinc non-standard flat head socket rivets with internal thread1.Standards:DIN ,ANSI/ASME,BS,GB,JIS,Non-standard2.Metail ... nuts, pin shaft, stud bolt,screws, bolts, non-standard bolt, non-standard nut, non-standard screws, egg neck bolt, fishbolt, countersunk head bolt ... various high quality fasteners which meet the GB, DIN, ANSI, JIS and ISO standard. The main products of the company include ...