20mm Diameter / M16x0.75 x 77mm lg Ball Mounting Screws Flat End S8020B03S8020B03 Size: 20mm Diameter / M16 x 0.75 x 77mm lg Compatible With: Flat Round Air Bearings S1012501 – 125mm Diameter S1010001 – 100mm Diameter Compatible With: Nut Housing Assembly S8020H01 – M16x.75 I.D. / M24x3 O.D. Specifications Engineering Drawings Units: US METRIC Title Specifications SKU S8020B03S8020B03 Attachments: S8020B03S8020B03.step