Terms for subject Mechanics containing thread end

English	Chinese
nipple both end plain thread	两端均为平端螺纹的短节
screw end American national acme thread	美制标准梯形螺纹端
thread end	螺纹端
thread large end	螺纹大头
thread on both ends	双头螺纹
thread on both ends	两端带螺纹连接的
thread small end	小头螺纹
thread small end	小端螺纹连接的
thread small end, weld large end	小端带螺纹、大端焊接