Tailor Made For: & Tunda Bed Rails System, compatible with 3/8inch-16 bolt attach for D ring V ring Tie down Cargo Motorcycle Bike Rack Mount On Pickup Truck Deck. ANTI-: This bed rail cleats is made of steel that is galvanized with silver zinc to prevent and rust. This heavy duty tie down rings are made of high strength solid steel and painted with high quality black to prevent and rust, Can be used in adverse weather and withstand harsh conditions. perfect for outdoor use. WIDE APPLICATION: The Black D-ring Anchors Provide attachment points for securing ratchet rope, cam buckle straps, bungees cords, to tie down motorcycles, bike, boat, kayak and canoe, ATVS ,UTVs and all kinds of cargos to your truck bed safety. Unlike others, our t-slot nuts are with cost effective price, but which tapped all the way through allowing for the bolt to pass all the way through Colour: black Material: metal Package Contents: 4 x T Slot Nuts 4 x V-Ring Only the above package content, other products are not included. Note: Light and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.