30 Pcs Metal Threaded Inserts: 15 M6 x 15 mm Wood Threaded Inserts and 15 M6 x 20 mm Furniture Connecting Screws, Screw Sleeves and Screw Nuts for Wooden Furniture, with 2 Wrenches

Durable and reliable: The nut and screw set are made of carbon steel. The screws and threaded inserts are robust and corrosion-resistant. They are suitable for long-term use on wooden furniture and resist deformation and damage.
M6x15 mm threaded insert for wood: The internal thread is transparent, and the convex shape grips the wood perfectly. After drilling, the screw is quickly and easily secured without complicated tools using the included wrench.
M6x20 mm countersunk head screw with hex socket: Once installed, the nut is difficult to unscrew or remove, ensuring a secure fastening. The convex structure of the metal threaded insert grips the wood perfectly and provides excellent holding power.
Versatile: Suitable for softwoods such as pine, plywood, fiberboard, etc. Whether for assembling beds, tables, chairs, or reinforcing workbenches and worktops, these screws offer precise adjustment. The kit includes: 15 M6 x 15 mm countersunk screws, 15 M6 x 20 mm threaded inserts, 1 M6 wrench, and 1 M4 wrench, for the installation and maintenance of wooden furniture.