Material:  Steel with smooth black semi-gloss finish Printed RU increments to aid equipment mounting Sold in pairs NOTE: These rails do not include hardware Spec Sheet:  1031-RRT TAA Compliant Certified U.S. Steel Made in U.S.A. (BAA) Rails for custom millwork shall be Lowell Model RRT-32. The rails shall be fabricated from 11 gauge steel and have a black powder epoxy finish. Each rail shall measure 32 rack units and be tapped on one side to accept threaded 10-32 screws (not included). Rails shall also feature a printed scale showing rack unit increments. Rack Screws: RSP Series: Phillips Finish-head, 5.1 hardness, 10-32 x .875 RSM Series: Phillips Truss-head, 302 stainless steel, 10-32 x .75 RS Series: Phillips Truss-head, 10-32 x .75 RSV Series: Torx star post head, 10-32 x .875 RSR Series: Robertson square head, 10-32 x .875