APPLY TO - Barrel nuts and flat head screws Barrel Nut T-Nut and Flange Nut with wrench used for assembly, connecting various components like screws, nuts, and bolts. They ensure stability by connecting furniture frames, supports, and structures.SPECIFICATION:Product Name: Barrel Nuts and Flat Head ScrewsFlat Head Screws Thread Diameter: M6-1(Thread Dia x Pitch)Flat Head Screws Screw Length (mm): 15-80Applicable Hole Size: 8mmColor: BlackMaterial: Carbon SteelQUANTITY INCLUDED - 6 x hex socket cap bolts M6x156 x hex socket cap bolts M6x206 x hex socket cap bolts M6x256 x hex socket cap bolts M6x306 x hex socket cap bolts M6x356 x hex socket cap bolts M6x406 x hex socket cap bolts M6x454 x hex socket cap bolts M6x504 x hex socket cap bolts M6x554 x hex socket cap bolts M6x604 x hex socket cap bolts M6x654 x hex socket cap bolts M6x704 x hex socket cap bolts M6x754 x hex socket cap bolts M6x8030 x barrel nuts M6x1230 x threaded inserts nuts M6x1020 x flange nuts M630 x t-nuts M6x101 x hex key M4ADVANTAGE - Furniture Joint Connector Bolt & Cap Nut Kit in Different Environments; including furniture assemblies like beds, tables, cabinets, and chairs; woodworking projects involving joining wood, boards, workbenches, and kitchen countertops; as well as office appliances, 3D printing, bicycles, Photo Album, Leather, Crafting, etc.INSTALLATION -Insert the screw into the hole on one end and insert the nuts to cover the screw on the other end. Lastly, use the wrench to tighten the bolts nuts.DESIGN - Choose Fasteners for: Flat head Hexagonal socket head type, uniform force that is not easy to slip, easy to use by normal hex keys, T-shaped hex keys, and electric screwdrivers. Suitable for replacing old bolts at any time.