Floating fastener

A floating fastener mounted in a first plate member for detachably fastening said first plate member to a second plate member, comprising:

• a mounting socket comprising an open chamber and a bottom mounting portion bonded to said first plate member;
• a locking member axially movably mounted in said open chamber of said mounting socket and fastenable to said second plate member to lock said first plate member to said second plate member, said locking member comprising a head, a tool-driving device located on a top side of said head, a fastening end piece fastenable to said second plate member, a plain stem connected between said head and said fastening end piece and a shoulder connected between said head and said plain stem;
• a first locating ring mounted in said open chamber of said mounting socket around said plain stem of said locking member and adapted for securing said shoulder of said locking member temporarily to hold said locking member in a received position where said fastening end piece extends out of said open chamber of said mounting socket and said spring member is compressed;
• a spring member sleeved onto said locking member and received in said open chamber of said mounting socket and stopped between said head of said locking member and said first locating ring;
• and
• a second locating ring mounted in said open chamber of said mounting socket around said plain stem of said locking member and below said first locating ring and stopped at a top side of said fastening end piece to prohibit said locking member from falling out of said mounting socket.