General description Our 12 Pack M6 x 20 mm Connecting Screws Bolts Connecting Screw Set is designed for versatile use in woodworking and furniture assembly. Made from high-quality stainless steel, these screws are durable, waterproof, rust-proof, and wear-resistant, ensuring long-lasting performance. Technical specifications Applicable opening: 5/16 inch (8 mm) External thread size (screw): M6 x 20 mm Internal thread size (top): M6 x 15 mm Installation Drill a hole 0.5 mm larger than the diameter of the nut rod. Place the screws and nuts on both sides of the object to be locked. Use an Allen wrench or any available tool to tighten and complete the fastening. Usage Ideal for connecting wooden boards, furniture shelves, cabinets, and more. Provides a stable connection with a deeply fused thread that prevents slipping.