Note: All dimensions are measured manually and there could also be an error of about 1mm. Please do not mindMaterial: Copper+Iron (Nut)Model: M6/M8/M10/M12Specification: M6 (for 1.0mm metal wire rope)M8 (for 1.2mm metallic twine rope)M10 (for 1.5mm metal twine rope)M10 (for 2.0mm metallic twine rope)M12 (for 3.0mm metallic cord rope)Quantity: Refer to the classification and choose the acceptable number to purchaseScope of application: Generally used on lighting fixtures fixtures, would be DIY chanced on to be used