Ball Spline Nut, Inside Dia. 18.2 mm, Flange Dia. 51 mm, Material Carbon Steel/Resin Cage, Bearing Type Ball Spline, Body Width (In.) 51 mm, Bolt Size -, Color Silver, Dimension A (In.) -, Dimension B -, Dimension B (In.) -, Dimension C -, Dimension C (In.) -, Dimension D (In.) -, Dimension E -, Dimension E (In.) -