The industry standard RLA Series two post open frame rack incorporates a 15” deep heavy-duty aluminum base and includes holes so that the rack can be secured to the floor. 12-24 threaded front and rear, with numbered rackspace increments. Includes 50 rack screws.- 12-24 threaded front and rear, with numbered spaces- Channels constructed from 3/16” aluminum- Heavy duty base includes holes for securing to floor- Silver brushed aluminum finish- Includes 50 pieces of 12-24 threaded rack screws- Ships flat to save space