Set included: 7 sizes M4/M5/M6/M10/M12 A total of 340 pieces, in a transparent box, applicable to different sizes of fasteners. High Quality Materials: Made of 65mm metal steel, brown, ridgeless, has good corrosion resistance and high temperature resistance. 7 Size: Starlock 340 parts subbluucker set contains 7 most used sizes M3/M5/M6/M10/M12, all washers are packed in a strong transparent plastic case and can be used compatible storage box. Functional Principle: A fuse disk exerts a spring compatiblece between the fasteners head and the substrate, which holds the hard disk against the substrate and the hard bolt thread against the parent or substrate thread, whereby More friction and of rotational resistance. Wide application spectrum: If it is used in machine equipment, industrial shock absorption and insulation production, your different requirements can meet daily. Starlock Dent Disc Scent Kits High quality installations, perfect compatible quick fixes and very simple repairs. Product Description: -7 Size M3/M5/M6/M10/M12 A total of 340 pieces, in a transparent box, suitable compatible different sizes of fasteners. - Made of 65mm metal steel, burnt, ridgeless, has good corrosion and temperature resistance. - High quality starlock subordinate discs with inner dental, perfect compatible quick fixes and super simple repairs. - Accessories in machine equipment, industrial shock absorption and insulation production can meet your different daily requirements. Specifications: Material: 65mn metal steel Color: black Sizes: M3 / M4 / M6 / M8 / M10 / M12 Quantity: 340 pieces Package includes: - M3 - 60 pieces - M4 - 60 pieces - M5 - 60 pieces - M6 - 50 pieces - M8 - 50 pieces - M10 - 40 pieces - M12 - 20 pieces