Buttress (45° / 7°) 52° Internal Threading Inserts

22NR 6 BBUTT PTX- British Buttress 52° Internal Right Hand Threading Insert - Posithread

16NR 20 BBUTT PTX- British Buttress 52° Internal Right Hand Threading Insert - Posithread

27NR 4 BBUTT PTX- British Buttress 52° Internal Right Hand Threading Insert - Posithread

27NR 8 BBUTT PTX- British Buttress 52° Internal Right Hand Threading Insert - Posithread

16NR 10 BBUTT PTX- British Buttress 52° Internal Right Hand Threading Insert - Posithread

16NR 12 BBUTT PTX- British Buttress 52° Internal Right Hand Threading Insert - Posithread

16NR 16 BBUTT PTX- British Buttress 52° Internal Right Hand Threading Insert - Posithread