A complete assembly is summarized under the term screw drive. In order to use the term screw drive, at least the combination of a threaded spindle and a threaded nut mounted on it is required.

Often, however, complete ready-to-install systems, i.e. spindle with nut, mounted bearings, locknuts or clamping rings, coupling and drive (motor, handwheel, toothed pulley, chain wheel, etc.) are also referred to as screw drives. Position measuring systems, digital position indicators, sensors and clamps are also often integrated into one system.

junaspin has set itself the goal of assembling ready-to-install screw drives and taking on the procurement of the individual parts as well as the assembly for the customer.