HILLMAN No. 1/4-20 in. X 3 in. L Phillips Flat Head Stainless Steel Machine Screws 50 Pk

Coarse Machine Screws are fastening screws with a machine-cut thread throughout the length of its shank. Machine screws are used with nuts or screwed directly into a threaded receptacle to fasten various components together in machines, tools, etc. The length of a machine screw is measured from under the head to the point of the screw.