These are automotive rail T-track bolts made of stainless steel, with reasonable design and practical functions, which can help you fix and lock well, have an excellent fastening effect, and optimize your automotive rail components . Made with excellent craftsmanship, safe and , with excellent texture, it will serve you for a long time. Features -Color:Black -Material: ABS, Stainless Steel. - Size: 6.00X4.50X4.50cm/2.36X1.77X1.77in -Made of stainless steel, it will not rust easily, making it safer and more practical. -T-shaped structure, easy to install, efficient and , with excellent fastening effect, it will be your good choice for fixing tools. -It is made of excellent craftsmanship and has good optimized fixing performance, making your guide rail more stable and reliable. -Reasonable design, easy to install and apply, bring you a better experience. -These are and rail T-track bolts with a . Package list: 4 -screw (M8 x 50mm) 4 x Nuts (M8 ) 4 x Stainless Steel Washers 1 x Wrench (4mm)