non-standard flat head socket rivets with internal thread 1. standard: non-standard. 2. material: ... steel, 3. finish: zinc non-standard flat head socket rivets with internal thread1.Standards:DIN ,ANSI/ASME,BS,GB ... gaskets, spring washers, mechanical bolts, tapping screws, fibreboard screws and hexagonal wood screws, etc. We can also process non-standardfasteners according ...