Metric Ball Screw, ECS-12.7X12.7-00-00-LH-550-G9 | Helix Linear Technologies

Lead (in)	0.500
Lead (mm)	12.700
Lead Accuracy	< 0.1 mm/300 mm
Lead Time	2 Weeks
Major Diameter (in)	0.516
Major Diameter (mm)	13.100
Minor Diameter (in)	0.406
Minor Diameter (mm)	10.300
Pitch (in)	0.250
Pitch (mm)	6.350
Screw Length (in)	21.654
Screw Length (mm)	550
Screw Weight (g)	0.940
Size	12.7x12.7
Starts	2
Thread Direction	Left Hand
Turns Per Inch	2.000
Turns per mm	0.079