Wilkinson E-Z0LOK,3L+3R,Chrome,Contemporary flat sided button with sealed housing and 45 degree fixing tag

Pls find the measurement in the attached photo.

• Brand: Wilkinson
•  Finish: Chrome
• Configuration: 3-Per-Side ,3L+3R
• Gear Ratio: 19:1 Gear Ratio 
• Required Neck Mahince head Hole Size: 0.391"(10mm)
• Mounting Screws,Washers,Ferrules are inclued.
  
  
  What is the E-Z-LOK?You can see there are 3 different posts in the belowing pohotos,and the #3 is the E-Z Lok post,and it will help you easily to install strings.
  
  Installing Guide: