Feature●TIME-SERT 3/8-16x.520 Insert QTY 10 p/n 03811●Professional thread repair inserts by TIME-SERT Made In USA●TIME-SERT Kit p/n 0381 required to installDescription TIME-SERT 3/8-16x.520 Insert QTY 10 p/n 03811 Professional thread repair inserts by TIME-SERT Made In USA TIME-SERT Kit p/n 0381 required to install