Crescent manufactures a variety of traditional screws such as Machine Screws, Tapping Screws, Thread Forming Screws, Thread Cutting Screws, and Shoulder Screws. These screws are precision manufactured in sizes from 000-3/8 or M1.2 thru M10, and lengths from 1/16(.062) to a maximum of 3"( varying by size and head style). Metric lengths from 76mm (varying by size and head style).