Check the listing for details. 25-Pack Threaded Inserts, 5/16-18x25mm Nuts with A Wrench and Drill Bit [Silver]. Condition: New. Listed at 16.08 USD. PRODUCT APPLICATIONSThreaded insert nuts are often used for the connection and fastening of wooden furniture combinations. They are widely used in cabinets, sofas, desks, dining tables, chairs and connecting boards, etc.PRODUCT DETAILS & INCLUDE√ Material: Carbon Steel√ Surface Treatment: Color Galvanized√ Color: Silver Tone√ Internal Thread Size: 5/16-18√ Length: 25mm / 0.98"√ Thread External Diameter: 14mm / 0.55"√ Applicable Drill Size: 8mm / 0.31"√ Wrench Size: M8√ Twist Drill Bit Size: 11mm / 0.43"√ Package Includes: 25Pcs x Threaded Insert Nuts, 1Pc x Wrench, , 1Pc x Twist Drill BitPRODUCT ADVANTAGES1. Carbon steel material, high hardness, with galvanized surface treatment to enhance durability and corrosion resistance.2.