JNNJ 6-Piece M8 Star Knobs, Black Carbon Steel, 20x35mm, M8 Thread, 8mm Diameter, Industrial Grade

• 【Durable Material】: The star nut adapter slider is made of carbon steel with white zinc plated surface for rust and corrosion resistance High hardness, not easy to deform for long term use. It is more suitable for the SUV roof for exposure to sun and rain, and supports long distance travelling.
• 【Practical Tools】: T-rail clamps are ideal for making jigs and fixtures for radial arm saws, workbenches, drill presses and a variety of other machines for a wide range of woodworking and metalworking applications. You can mount it anywhere on the T-rail and apply clamping pressure
• 【Perfect Thread】: Thread length: 35 mm, neatly machined thread, high resolution, smooth surface, clear and smooth without burrs, perfect for all types of roof box roof racks.The T-Track Adaptor makes it easy to fit slotted nuts to roof racks. Ideal for replacing or adding to your roof rack system.
• 【Easy to Use】: Installation is a simple, tool-free procedure. You simply install the T-bolt and nut along the recessed T-rail and quickly tighten the T-slot nut by turning the handle knob. They are the most commonly used components for attaching aluminium profiles and are a must-have for the home.
• 【Package Included】: Package contains 6 x M6 bolts, 6 x M8 washers, 6 x M6 nuts, 6 x M8 star-shaped fastening nuts. Enough for daily use. Corrosion-resistant, sturdy and durable, suitable for mounting bike racks, skis, roof boxes, water sports equipment racks, solar panels, etc. on roof racks.

Specification: - Product name: Star handle screws with pressure piece - Product colour: Black - Product material: PP+carbon steel - Surface treatment: White zinc plated - Product dimensions: 20*35mm - Head shape: Six stars - Product includes: 6 x M6 bolts, 6 x M8 washers, 6 x M6 nuts, 6 x M8 star clinch nuts Features: - High-quality, durable materials that are rust-proof, strong, corrosion-resistant, and resistant to sunlight and torrential rain to withstand long drives. - Suitable for all kinds of roof boxes and roof racks as well as many crossbars with rail systems. - Easy to use, the support surface of the bracket is large enough to exert enough pressure on the roof box and easy to install. - Can be used to secure bicycles, roof racks, ski equipment and load limiters without having to remove existing clamps, making it easier to attach aluminium profiles.