Demand For Sound E-TrackHardware An E-Track tie-down system is only as good as its installation. The tighter the track is fastened to the wall or floor of the truck of trailer, the stronger and more dependable it is - and the greater the surety of the cargo restraint. Simplicity Of Hex Head Metal Screws With Self-Drilling Tips These hex screws with self-drilling tips can be drilled straight into any metal surface, avoiding the need for pre-drilled holes. Simply drill the screws through the holes in your E-Track and secure to the floor or wall of your metal truck or trailer. The hex heads make these screws easy to use with everyday tools. They can be easily removed with a screwdriver or drill. 1.5" Hex Head Metal Screw Specs This E-Track hex screws pack comes with 10 fasteners. They have a diameter of #14 and the screws are 1.5" long. Use a 3/8" diameter drive to fasten screws. The screws are zinc-plated, improving corrosion- and rust-resistance. They are also available with 2" long bolts.