Material: High quality Zinc alloy with high hardness. These furniture screws are wear-resistant and very durable to use. Standard internal hex socket type without burr and non-slip design. Usage: Pre-drill /drill a well-sized hole (Suggest that the diameter of the hole is 9. 6 +/- 0. 2mm, the length is about 18mm), then use a 6mm internal hex tool to screw in (6mm Hex Spanner Included). Tip: If the furniture wood is with high-hardness, please enlarge the screw hole. Applications:These furniture screws are suitable for furniture hardwood/ solid wood, for furniture combinations. Thread Type: M6Total Length: 15mmExternal Diameter: 10. 5mmInternal Hex:6mmMaterial: Zinc alloyHex Spanner: 6mmcolor:BrassPackage Contents:100 x M6x15mm Screws1 x 6mm hex spannerOnly the above package content, other products are not included. Note: Light and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm. Note: Please allow slight errors due to manual measurement. Please make sure you don't mind before bidding. Color may vary depending on your monitor, please understand. Note: Hello, please pay attention to your shipping address when purchasing products. If your delivery information (e.g. name, street, house number, doorbell/email without name, etc.) is incorrect, the order will not be delivered correctly