How to replace lost steel studs?

crwdns2935421:0crwdne2935421:0 crwdns2935423:0crwdne2935423:0

crwdns2935425:02crwdne2935425:0

crwdns2935419:0crwdne2935419:0

crwdns2936315:0crwdne2936315:0

crwdns2936323:0crwdne2936323:0

crwdns2931653:02crwdne2931653:0

What you need

New BUGrip studs
Elastic Glue (For example RubberFix or Shoe Goo)
Pliers

crwdns2944171:0crwdnd2944171:0crwdnd2944171:0crwdnd2944171:0crwdne2944171:0