Vulcan & Vulcan PROSeries Winch Straps - The Industry Standard For Trailer Tie Down These heavy-duty industrial tie down straps for flatbed trailers fit into any standard 4" ratchet or winch. They are manufactured with certified polyester tie down webbing. The bright yellow, orange, blue or red dye resists fading and all of the webbing is coated for UV and cut resistance. The flat hooks, wire hooks or chain anchors mate easily to side rails, stake pockets or d-rings and are zinc-dichromate plated for extra weather resistance. The safe working load is clearly stamped on warning tag every warning tag for easy identification and inspection. All Vulcan winch straps meet or exceed all DOT requirements.