Stainless Steel Adjustable Damping Hinge With Hidden Concealed Torque For Arbitrary Stopping And Positioning Hinge Kind reminder: The price of all products is for one piece, not for a pair of products. Please note._x000D_ No screws are provided, buyers need to purchase them themselves. Because the installation of screws is determined according to the customer's installation requirements. Due to the different thicknesses of the installation plates and the varying lengths of the screws, including metric, English, and American systems, as well as countersunk cup head, pan head, ball head, or self tapping screws, the seller does not provide screws. Please forgive ! Damping hinge description: hinges with high torque values are generally unable to rotate in the initial state. They can only be rotated after installation and under force, or with the help of a wrench. Before purchasing, please calculate the required torque according to the calculation formula before making a choice. This is not an ordinary hinge, please purchase with caution! Thank you for your understanding! _x000D_