dumpsterCNC Threaded Couplers

 ◊ Connect your stepper motor to the lead screw without needing a lathe to turn down the lead screw shaft.
 ◊ A flat on the shaft is not needed.
 ◊ These couplers will not damage the shaft.
 ◊ Made from high tensile strength Delrin.
 ◊ Complete with 4 stainless steel #4-40 screws and brass inserts.
 ◊ Tighten the screws about 1 turn past snug. Do not over tighten, a little torque will clamp these on really tight. For best results, re-tighten after a couple hours of use.