* The back of the plate shall be completely flush;
 * Small and delicate, widely used in precision electronic and electrical products or precision equipment;
 * High torque resistance;
 * The series of specifications can meet a variety of design requirements.  Rivet Nuts : S, CLS, SP series Rivet Studs : BSO, SO, BSOS, SOS series Rivet Screws : FH, FHS, NFH, NFHS series Expansion Rivet Nuts : Z, ZS series Weld Studs & Screws : IT, ITS, PT, PTS series 
  Waterproof Nuts : B, BS series Additional Offerings : Blind rivets, captive spring screws, semi-tubular rivets, and comprehensive standard/non-standard fasteners.