T20 20mm Trapezoidal Lead Screw 27.56 inch / 700mm Length, Right and Left Hand Bi Direction T-Type Lead Screw with 2Pcs Nuts for 3D Printer Machine Z Axis (Pitch/Lead of Screws: 4mm)

Brand: Coavoo Material: 45# carbon steel, with blackened treatment Lead of thread: 4mm Lead Screw diameter: 20mm Lead Screw spacing: 4mm This package includes: 1Pcs right and left hand Trapezoidal lead screw T20 with total Length 27.56inch /700mm 2Pcs T20 20mm blacken cylindrical nuts Please Note: We provide customization, if you have any special needs, please give us Amazon Message

• 1：Right hand and left hand Trapezoidal lead screw diameter: 20mm; Lead / Pitch:4mm; Total length:)27.56 in/700mm; with 2pcs T-type lead screw nuts, no end machining. There are about 20mm reserved for the middle joint
• 2：Bi-directional makes 2 nuts move in opposite directions, towards both ends or to the middle at the same time with much higher precision, overcome the synchronization error excellently caused by the 2 motors. The right-handed / clockwise and left-handed / counterclockwise thread lengths are equal in default, if your length are different, please tell us
• 3：The lead screw is made by 45# carbon steel, with blackened treatment, make the rod and the nut robust, sturdy, durable and anti-rust; The standard screw nut is the cylindrical nut, if you need the flange nut, brass flange nut or the hexagonal as showed in the image 4, we can also provide, please let us know
• 4：We can provide all the customization service for you, any length of the lead screw, end machining requirement, kinds of manufacture about the nut and so on, please let us know your needs through Amazon message
• 5：Coavoo, a seller focusing on the transmission products, we can provide full styles of lead screws to meet your needs, the biggest diameter could be 60mm; We can also provide the CAD and 3D step files