Profile Ball Rail, Overall Length 460 mm, Overall Width 15 mm, Overall Height 15.7 mm, Rail Material Steel, Manufacturer Size 15, Number of Mounting Holes 6, Rail Finish Hardened Steel, Rail Type Profile, System of Measurement Metric, Standards DIN 645-1, For Use With 500 Series Ball Carriages, Operating Temperature - Maximum 176 Degrees F, Operating Temperature - Minimum -40 Degrees F, Mounting Hole Center to Center 60 mm, Mounting Hole Center to Shaft End 20 mm, Mounting Hole Type Threaded