Hillman Round Head Machine Screw 1/4 x 1-1/4 In. is designed to securely fasten metal parts together, either by using nuts or by screwing directly into a threaded receptacle. The length of the screw is measured from the underside of the head to the tip, ensuring you get the precise size needed for your project. For fit and finish, it is to pair these screws with nuts that have the same threading and finish. This machine screw reliable performance for various fastening applications, making it a versatile choice for your hardware needs. Model Number: