Flachgewinde (n)

flat thread (n)

Flat thread rolling uses two dies that feature a mating profile that matches the pitch of the desired thread, bevelled lead-ins and run-outs and a flat calibration section.

square thread (n)

扁螺纹 (n)

方螺纹 (n)

rosca de cuadro (n)

rosca plana (n)