DescriptionT-shaped bolts with wide head. Plated for corrosion resistance. Suitable for indoor or outdoor use. Made from solid stainless steel allows them to be used in a variety of environments including salt water, freshwater, indoor and outdoor.Features-Color: silver. -Material: stainless steel. -Size: 4.00X2.40X1.80cm/ 1.57X0.94X0.71inch.-Stainless steel material, rust-proof and corrosion resistant, more suitable for sun and rain showers on the SUV roof to support long distance travel. -Best screw for roof storage, the contacts surface of the brackets is large enough to apply sufficient pressure on the roof box.-Matching nuts for your roof rack, suitable for many carriers with slot block systems. -Suitable for different types of roof boxes and roof racks, bicycles carriers, ski racks, roof boxes, roof luggage baskets, load limiters.-Can be used in many other situations where T-nut adapter is required.