Heavy-duty D-rings are constructed from high tensile steel. D-ring tie-downs have a 1,200 lb assembly break strength and load limit. Load tie-down rings are made of sturdy heavy-duty zinc-plated steel to resist corrosion and rust. Each mounting bracket measures 6 x 2 x 0.3 cm. D-ring size is 4.5 x 4 x 0.6 cm. The hole in the bracket is 0.63 cm. D-ring anchors are designed to be used with ropes, bungee cords, or straps, along with basic hardware, and can be easily attached to metal or wooden surfaces. Widely used as anchor points on trucks, vans, kayaks, ATVs, caravans, boats, and trailers. Also useful as wall mounts in garages. Ideal for securing cargo in boats, cars, motorhomes, kayaks, off-road vehicles, and caravans. Suitable for indoor and outdoor applications. Ring size: 4.5 cm x 3.2 cm x 0.5 cm. Cleat size: 5.5 cm x 2 cm. Hole diameter: 0.65 cm. Type: Lashing ring. Material: Zinc-plated steel. Color: Silver. Commonly used to secure kayaks, ATVs, bicycles, refrigerators, storage boxes, moving equipment, camping gear, and similar items. Made from high tensile steel with an assembly break strength of 1,200 lbs. Can be easily installed using two bolts and basic hardware on metal or wooden floors. Ideal for securing kayaks, ATVs, sporting equipment, bicycles, appliances, moving boxes, and camping gear.