SPECIFICATIONS: M4 x 10mm thumbscrews made of durable carbon steel with black finish, perfect for monitor mounting and mechanical applications PACKAGE CONTENTS: Set includes 10 pieces of knurled thumbscrews with round heads for easy manual tightening VERSATILE USE: Ideal for monitor mounts, door fastening, and various mechanical clamping applications requiring tool-free adjustment DESIGN FEATURES: Knurled pattern on head provides enhanced grip for comfortable finger tightening without need for additional tools THREAD TYPE: M4 metric thread design ensures precise fit and secure connection for compatible mounting applications These premium black M4 thumb screws combine functionality with ease of use, featuring a knurled head design that allows for tool-free tightening and loosening. Each screw measures M4 x 10mm and is crafted from durable carbon steel with a sleek black finish. The pack includes 10 pieces, perfect for monitor mounting, mechanical door installations, and various clamping applications. The round head design provides comfortable grip while the precision-cut threads ensure secure fastening. These versatile thumbscrews are ideal for both DIY enthusiasts and professional installations where frequent adjustments may be needed. The knurled pattern on the head offers excellent grip even in tight spaces where traditional tools might be difficult to use. These screws are particularly well-suited for computer monitor mounts, machinery components, and other applications requiring regular manual adjustments.