TBE : Threaded both end (양쪽 나사) PBE : Plain both end (양쪽일자 절단) PLE/TSE : Plain large end // Threaded small end (큰쪽 절단// 작은쪽나사) BLE/TSE : Beveled large end // Threaded small end (큰쪽 용접베벨 // 작은쪽 나사) TLE/PSE : Threaded large end // Plain small end (큰쪽 나사 // 작은쪽 절단) BLE/PSE : Beveled large end // Plain small end (큰쪽 용접베벨 // 작은쪽 절단)
