螺纹联结，管螺纹联结 threaded joint, pipe threaded joint
锥管螺纹密封焊联结 seal-welded taper pipe threaded joint
承插焊联结(接头) socket welded joint
承插联结(接头) bell and spigot joint
环垫接头 ring joint (RJ)
万向接头 universal joint
软钎焊联结(接头) soldered joint
搭接接头，松套联结 lapped joint
外侧厚度切斜角 bevel for outside thickncss
内侧厚度切斜角 bevel for inside thickness
内外侧厚度切斜角 bevel for combined thickness
法兰式的 flanged (FLGD)
对焊的 butt welded (BW)
螺纹的 threaded (THD)
承插焊的 socket welded (SW)
小端为平的 small end plain (SEP)
大端为平的 large end plain (LEP)
两端平 both ends plain (BEP)
小端带螺纹 small end thread (SET)
大端带螺纹 large end thread (LET)
两端带螺纹 both end thread (BET)
一端带螺纹 one end thread (OET)
支管联结 branch connection
焊接支管 branch pipe welded directly to the run pipe
2 管道用紧固件及螺纹
2.1 紧固件
螺栓 bolt
六角头螺栓 hexagonal head bolt
方头螺栓 square head bolt
螺柱，双头螺栓 stud bolt
环头螺检 eye bolt
沉头螺栓 countersunk (head) screw
地脚螺栓 anchor bolt; foundation bolt
松紧螺旋扣(花篮螺丝) turnbuckle
U形螺栓 U-bolt
T形螺栓 T-bolt
圆头螺钉 round head bolt
机螺栓，机螺钉 maehine bolt
顶开螺栓，顶起螺栓 Jack screw
自攻螺钉 self tapping screw
膨胀螺栓 expansion bolt
粗制的 coarse
精制的 finished, fine
螺母 nut
