KF niƙa mai gefe biyu na zaren ciki muhimmin ɓangare ne na tsarin bututun bakin karfe a masana'antar kera kayan aiki gabaɗaya.An ƙera shi don haɗa bututun bakin karfe cikin sauƙi da aminci.
KF/BSPT na waje threaded haši ne wani muhimmin bangaren bakin karfe tsarin bututu a general manufa kayan aiki masana'antu masana'antu.Dace da haɗa bakin karfe bututu na daban-daban masu girma dabam.