Dimension - Diameter of the applicable hole: 5/16 & nbsp; PO (8mm); Dimension under the head (male): M6 x 25mm (D * L); Dimension under the head (female): M6 x 15mm (D * L); diameter of the screw head: 12.8mm Application - Suitable for all kinds of DIY art, leather crafts and clothing making. & nbsp; such as thin photo albums, decorative bags, belts, leather bags, sandals, sandals, Boots, etc. Depending on the dimension, It can be used as a clip to connect. Installation - Make a 0.5mm hole larger than the diameter of the female rod, place the screw and nut on both sides of the locked object and select the appropriate tool for the lock. Note - The thickness of the lock object must be less than the length of the screw rod + nuts, otherwise it will not be able to tighten. Advantage - Mechanical precision wire, in carbon steel, black powder coating, anti -rust. & nbsp; they are an important addition to any leather clothing or accessory.