E-Track Wood beam is standard for 2"x 4" and 2"x 6" wood planks. Good for commercial truck trailers, utility trailers, enclosed trailers, nursery shipping applications and farm, ocean shipping containers, moving and storage trailers so on Durable & Long-lasting Use： Thick steel plated with zinc,gold zinc-coated steel for superior corrosion and rust resistance in addition to a life-time of sturdiness. Experiment testing breaking strength about 940lbs Widely Appliacation: Use the 2x4/ 2x6 wood planks and wood beam brackets, you can create dividers, shelves and additional storage space to meet your various needs, and could build shelving, beds, dividers, and cargo restraints very quickly and easily Easy to Install: Spring-loaded fittings of the sockets make it can be easily attached/removed to E-track rail or A-track trailer tiedown system, 1/4" bolting holes are for locking nuts Package & After-service: Include 4x Black E-Track wood beam end sokcet bracket. If the there any problem with the product, pls contact us freely, we will reply quickly and try our best to provide a satisfactory solution TENVONE 10 Packs Black E-Track Wood Beam Socket Fit for 2x4 2x6 in Cargo Accessories