Machine Screw, Hillman, Stainless Steel, Phillips-Drive, Flat-Head, #4 x 40 1/4 in

Machine screws and nuts are used in conjunction with one another in order to fasten metal parts together securely. To ensure proper fit and quality of life, make sure to use machine screws with nuts of similar thread size and finish.

• Machine screws are used with nuts or screwed directly into a threaded receptacle to fasten metal parts together
• Use machine screws with nuts of a similar finish and threading to ensure proper fit
• Fasten with a screwdriver to reduce the risk of over-tightening to protect the screw and fastened material