3D Printer CNC Lead Screw 30cmx8mm 7 Openings Without Nut

Specifications: 

• Lead Screw :

  Number of Starts: 7 Start
  Material: Stainless steel lead screw, copper nut
  Screw diameter: 8mm
  Screw length: 300mm
  Screw pitch: 2mm
  Lead of thread: 14mm

  Nut:

  Material: Brass
  Diameter: 8mm
  Pitch: 2mm

  Lead: 14mm

• Difference between Lead and Pitch
• Pitch
  Pitch is the distance between screw grooves and is commonly used with inch sized products and specified as threads per inch.

• Lead

  Lead is the linear travel the nut makes per one screw revolution and is how ball screws are typically specified.

  The pitch and lead are equal with single start screws.  For multiple start screws the lead is the pitch multiplied by the number of starts