Mega Clamps, from Rack-It, provide a simple, drill-free way to mount a Uni-Line Truck Utility Rack, Uni-Line Forklift Loadable Utility Rack, Uni-Line Camper Shell Truck Rack, Rack-It Headache Rack, or other Rack-It truck rack. Each clamp consists of a plate which goes over the top of the bedrail and truck rack foot, as well as a machined aluminum block that clamps against the underside of the bedrail. A bolt with locking nut tightens the Mega Clamp, securing the rack in place. Rack-It Mega Clamps are manufactured from 10 gauge steel and machined billet aluminum, and feature a black powder coat finish. Sold in sets of 2 and 4.