4 E-Track Tie-Down Rails. E-Track is the ultimate in cargo tie-down systems that will put you in control of your freight transport using a strong tie down system that works anywhere, with hundreds of options to secure every load’s needs. PLUS it’s incredibly easy to use! E-Track rails can be mounted onto the floor of a flatbed truck or utility trailer for optimal ATV, car, and motorcycle tie-down. They can also be placed on the wall for easy securement of small equipment, power tools, cargo bar load locks, lumber, personal belongings, packages and other types of freight. E-Tracks can be used solo or in pairs to secure large loads. 5' Horizontal E-Track Rail, Powder-Coated 12 Gauge Steel. See images for a detailed mechanical sketch showing all the measurements you need for installing. This black 5' horizontal trailer rail is the perfect anchor for your cargo tie down needs in pickup trucks, enclosed box trucks, reefers, large enclosed trailers, small cargo vans, flatbed and utility/motorcycle trailers, warehouses, garages, and other workspaces. Made of durable 12 gauge steel that can withstand outdoor elements and indoor roughhousing, powder-coated with black paint for an extra-durable finish that won’t chip or scratch. The 36 horizontally-placed slots are 1" x 2.5", spaced 1" apart. 1/4" mounting holes line both edges, 2" apart. Installation for E-Track Tie-Down Rails This 5' horizontal E-Track is so easy to install! Choose screws or bolts depending on the thickness of your trailer floors or walls as well as whether you’ll be using trailer studs or backing plates. Installation fasteners not included.