Material: High quality Zinc alloy with high hardness. These furniture screws are wear-resistant and very sturdy to use. Standard inner hex socket variety without burr and non-slip design.Usage: Pre-drill /drill a well-sized gap (Suggest that the diameter of the outlet is 9.6 +/- 0.2mm, the size is set 18mm), then use a 6mm inner hex tool to screw in (6mm Hex Spanner Included). Tip: If the furnishings wood is with high-hardness, please increase the screw hole.Applications:These furniture screws are compatible for furniture hardwood/ stable wood, for furnishings 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 kit content, other products are not included.Note: Light capturing and diversified reveals may cause the colour of the article in the picture a little bit various from the genuine thing. The size allowed error is +/- 1-3cm.