TIME SERT® Kit 1/2 - 20 UNF Fine Thread Repair Kit | 5 Inserts Included
Inserts - 5 x. 650 (16.5mm) length. 1/2 - 20 Kit Contains. Qty : 1 Kit. On installation the bottom internal threads of the insert are cold rolled to expand the mating external threads into the base material locking the insert in place.