non-standard flat head socket rivets with internal thread 1. standard: non-standard. ... 3. finish: zinc non-standard flat head socket rivets with internal thread1.Standards:DIN ,ANSI/ASME,BS,GB ... bolts,screws,studs,nuts,washers,threaded Rods,pins,rivets,stamping,circlips and other nonstandard parts.Shanghai Jinrui ... 7 types:1. High strength alloy steel double end stud- , fully-threaded stud and heavy hex ...