Whats a quicky bolt used for1/23/2024 Unlike metric fasteners, a larger number indicates a finer thread (that's because threads per inch is the reciprocal of pitch). In the inch series, it is the number of complete threads per inch (if you need to know the pitch of an inch fastener, use the chart below or divide 1 by the number of threads per inch). Threads per inch is sometimes confused with thread pitch-pitch is the distance from one thread to the next thread, which is how metric screws are specified. Machine screws, but especially caps screws and bolts, can range from 1/4 inch up to 3 inches or more. Machine screws are often found in sizes of: 0, 1, 2, 3, 4, 5, 6, 8, 10, 12, 14-the larger the number, the larger the screw. Sometimes, not often though, you may see a sheet metal screw listed as a fraction like 5/16 or 3/8 but, generally, the diameter of these screws will be specified as a one or two digit number. The diameter of wood screws, sheet metal screws and other fasteners that are not used with a nut are specified by a one or two digit number such as: 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 14, 16, 18, 20, 24 (not all screws are available in all sizes). Consequently a #8 screw is larger than a #4 screw, just as a 3 inch bolt is larger than a 2 inch bolt. In all cases, the larger the number, the larger the size. Their size is described as diameter, number of threads per inch (if used with a nut or in a threaded hole), and length in inches.ĭiameter is given as a one or two digit number for smaller sizes, and as a fraction for larger sizes. Fastener Tech Data | Understanding Series Introductionįasteners (bolts, screws, etc.) that belong to the "inch" series are the most common in the U.S.A.
0 Comments
Leave a Reply.AuthorWrite something about yourself. No need to be fancy, just an overview. ArchivesCategories |