Single Screw Screw Screw 4x5mm Nickel Single Screw Screw Screw is a pair of head (female) and foot (male) and screw back fasteners. Use them for swatches or fabric swatches or additional albums. Recommended for those looking for a screw-type cascade. Although it has a similar role as a clamp, this screw-type screw has a screw-type screw, no tools are required for installation, and it is also a screw type, so it can be removed and reused. Please use with the total thickness of the pinched object is 0.2 inches (5 mm). For the hole that you put it on is suitable for 0.18 - 0.2 inch (4.5 - 5 mm) in diameter. Measurements are approximate. The color of the actual product and the color of the posted picture may differ depending on your monitor.