High-quality material T-rails M6 are made of stainless steel, it has a high strength and corrosion resistance, it is very suitable for SUVs roof, no fear of sunlight and rain.Easy to use: Our roof box car T nut is very suitable for roof rack rails and beams with Thule, Menabo, VDP and other sliding systems. The support surface of the holder is large enough to carry enough pressure on the roof box.Wide range of uses: The T-track adapter is a slot nut for roof rack and rail. It can also be used to secure bicycles, roof baskets, ski equipment and load limiters. It is very practical and comfortable.Perfect quantity: Our T-rail adapter kit contains 8 bicycle parts, which represent a large number of kits and more convenient use.Ideal size: our stainless steel T track adapter M6, its thread length is 35 mm, the size is 20 x 20 x 4 mm (length x width x height). Appropriate size, able to meet most usage requirements.