Features: 40 pcs high-quality humbucker round surround screws. Double coil design, perfectly suitable for electric guitars. It is stable and not easy to move after installation. Standard sized mounting screws, easy to install on your instrument. Good and useful electric guitar replacement and repair parts. Specification: Material: Metal Color: Silver, Black, Golden (Optional) Quantity: 40 Pcs / Set Each Length: Approx. 18 mm / 0.7 in Screw Thread Diameter: Approx. 2.5 mm / 0.1 in Weight: Approx. 20 g Package List: 40 * Screws per Set Note: * ONLY 40 screws in the list, guitar and other items in the picture are not included. * For different monitors, the color may vary slightly. Besides, please allow some errors of manual measurement, thank you for your understanding.