Hillman Round Head Machine Screw 1/4 x 3 In. is designed to securely fasten metal parts together, either by using nuts or by screwing directly into a threaded receptacle. The length of this machine screw is measured from the underside of the head to the tip, ensuring precise fit for your fastening needs. For optimal performance, it is to use nuts that match the screw’s finish and threading. This reliable and durable screw is i for various metal fastening applications, providing a strong and stable connection. Model Number: