Description:1. Material: The cam lock nut is made of carbon steel and has nickel plating treatment, which is rust-proof, corrosion-resistant, and has high strength and durability2. Features: Furniture locking nut has deep cross slotted, not easy to slip and break during use, usually matched with a pre-inserted nut and positioning dowel screw (not included in the package) during the connection process3. How to Use: When you use it, you need to measure the diameter and depth of the pre-drilled holes, check their fit, and then install the three-in-one assembly into the pre-hole, and then put in the cam lock nut, and lock the cam with the nut. Note: Do not lock with force when using, rotate the nut according to the actual situation, usually to about 90 degrees4.