Manufacturer part number:  W1505WF-9K1X-C5S10

• 15mm diameter
• 10mm lead
• 550mm overall length, estimated 330mm of nut travel.
• CLICK HERE to view PDF documentation for this screw
• Precision ground, C5
  
• This ball screw has some sort of matt-finish coating applied presumably to ward off corrosion/rust.
• Note that any mottling, discoloration or other aberrations in pictures are GREASE applied to screw for shipping/storage.  NSK packs all of its products very carefully, and we removed this screw from factory packaging to photograph it.  It was wiped down a bit, but no attempt was made to completely clean it.  These NSK screws are factory new, factory perfect and absolutely BEAUTIFUL.