Get the insight you need on your fleet of vehicles. E-Track rails give you tie-down points wherever you ne. E-Track Single Strap Anchor in Black (6-Pack) The Snap-Loc E-Track System is the easiest, The Snap-Loc E-Track System is the easiest, fastest and safest way to tie-down cargo items on pickups, trucks, trailers, racks, walls, floors, ceilings and more! THE PROBLEM: Cheap hook straps come loose, break often causing valuable items to.