20" Deep Double Rack Shelf Package includes: A. 20" Deep Double Rack Shelf, 1 pc B. #12-24 x sig" Pan Head, Pilot Point Machine Screw, 8 pcs C. #10-32 x 38" Pan Head Machine Screw, 4 pcs 20" Deep Double Rack Shelf Features and Benefits: + Designed with durable steel construction, black textured powder coated, supports bigger and heavier equipment up to 125 Ibs. load capacity. * Designed to fit all standard 19" racks and cabinets with 3" deep side rails. * 2 rack mount space (WORMS.