25PCS 5/16"-18 x 25mm Threaded Inserts for Wood, Hex Drive Nuts

Key features

• High-Strength Carbon Steel: Constructed from zinc-plated carbon steel for durability, corrosion resistance, and long-lasting performance in woodworking and furniture repair.
• Precision Threads for Reliable Alignment: Clean internal threads and concentric design ensure bolts fit straight without slipping or misalignment.
• Easy Installation with Drill Guide: Recommended drill size: Softwood: 29/64" (11.6mm) Hardwood: 15/32" (12mm) Proper sizing prevents cracking or loose fit. Install with included hex key.
• Versatile for General Use: Ideal for chairs, tables, cabinets, and medium-load furniture connections across hardwood, plywood, and composite boards.
• Size Details: Internal Thread: 5/16"-18; Length: 25mm. Recommended hole depth: ≥27mm for flush installation.

Built with precision external self-tapping threads, these wood insert nuts effortlessly cut clean channels into wooden materials for a tight, interference-free fit. Featuring a standard hex drive design, the inserts deliver stable, uniform force during installation for flush, secure seating without tilting or surface damage. Made of high-quality carbon steel with superior hardness and tensile strength, they offer excellent wear resistance and anti-corrosion performance to ensure long-lasting fastening stability in daily use. Ideal for furniture assembly, woodworking projects, cabinet repair, fixture installation, and homemade wood structure reinforcement, these versatile threaded inserts are essential fastener accessories for all kinds of home and industrial wood repair tasks.

Free shipping included. 30-day hassle-free returns.