The bolt chart provides both US and metric stud sizes. Diameter and Lengths of the stud and bolt are covered in flange standard ASME B16.5 & B16.47.  They were one of the first international standards agreed when the International Organization for Standardization (ISO) was set up in 1947. M3.5 and larger threads are tapped thru 25.4 MM in lengths. Superfine pitch metric threads are occasionally used in automotive components, such as suspension struts, and are commonly used in the aviation manufacturing industry. Conversely, in an internal (female) thread (e.g., in a nut), the major and minor diameters are minimum dimensions; therefore the thread profile must end flat at Dmin but may be rounded out beyond Dmaj. The "M" designation for metric screws indicates the nominal outer diameter of the screw thread, in millimetres (e.g. Definitions of terms are located below the chart. In addition, one or two smaller “fine” pitches are defined, for use in applications where the height of the normal “coarse” pitch would be unsuitable (e.g., threads in thin-walled pipes). Metric Bolt Conversion. Print this page . StayOnline provides the most reliable power cord supply chain management. Use this ring terminal stud size chart to identify the size of the terminal or stud by measurement, U.S. stud size, or metric stud size. Note : * Non-preferred threads according to standard. The "M" designation for metric screws indicates the nominal outer diameter of the screw thread, in millimetres (e.g., an M6 screw has a nominal outer diameter of 6 millimetres). ISO 68-1: ISO general purpose screw threads — Basic profile — Metric screw threads.  Each thread is characterized by its major diameter, D (Dmaj in the diagram), and its pitch, P. ISO metric threads consist of a symmetric V-shaped thread. In an external (male) thread (e.g., on a bolt), the major diameter Dmaj and the minor diameter Dmin define maximum dimensions of the thread. Another example of a metric set of drill sizes is the Renard series, which uses a simple factor to determine the diameter: The R5 series uses a factor of 1.58 and contains the following sizes: M2.5, M4, M6, M10, M16 and M24; The R10 series uses a factor of 1.26 and contains the following sizes: M3, M5, M8, M12, M20 and M30 1996 - 2020 All Rights Reserved. In addition to coarse and fine threads, there is another division of extra fine, or “superfine” threads, with a very fine pitch thread. ISO 965-2: Limits of sizes for general purpose external and internal screw threads. StayOnline provides the most reliable power cord supply chain management. Use the dimensions of your bolt to determine the appropriate size nut. The ISO metric screw thread is the most commonly used type of general-purpose screw thread worldwide. We Carry Coarse & Fine Threaded 6mm Studs Choose below between M6X1.0 Coarse Thread and M6X0.75 Fine Thread studs. Stainless Steel & Nylon Parts: M2.5 thread is tapped thru 9.6 MM in length M3 thread is tapped thru 12.7 MM in length. Learn how and when to remove this template message, International Organization for Standardization, Metric screw thread dimensions and tolerances, Diagrams and tables of many screwthread series. The “coarse” pitch is the commonly used default pitch for a given diameter. as you are going to use bolt and stud to connect flanges.. size Min. © Stay Online LLC. Metric Stud Bolt To Nut Size Chart. . This is because extra fine threads are more resistant to coming loose from vibrations. Just select the lead-time that best meets your needs. They were one of the first international standards agreed when the International Organization for Standardization (ISO) was set up in 1947. A metric ISO screw thread is designated by the letter M followed by the value of the nominal diameter D (the maximum thread diameter) and the pitch P, both expressed in millimetres and separated by the hyphen sign, - (e.g., M8-1.25). 1/4 0.250" (6,350 mm) M6 6,0 mm (0.24") 0.265" (6,7 mm) 5/16 0.3125" (7,938 mm) M8 8,0 mm (0.32") 0.328" (8,3 mm) 3/8 0.375" (9,525 mm) M10 10,0 mm (0.40") 0.397" (10,1 mm) Call us today, (888) 346-4688 / 00+1+919.529.3133. Flange Bolt Chart and Stud Size in mm In this article, I have covered Flange Bolt Dimension Chart and Stud Size Dimensions for stud and bolt used is piping. Metric Bolt Head/Wrench Size. The terms “coarse” and “fine” have (in this context) no relation to the manufacturing quality of the thread. All dimensions are given in millimeters. Tolerance classes defined in ISO 965-1 can be appended to these designations, if required (e.g., M500– 6g in external threads). Stay Online world-wide headquarters is located at 1506 Ivac Way, Creedmoor, NC 27522, USA. The chart below shows metric bolt conversions and DIN numbers for fasteners. Below are some common spanner (wrench) sizes for metric screw threads. Image shown below indicates the nomenclature that used in the dimension chart. We can leverage our USA and off-shore molding capabilities to deliver the right cord, when you need it. We can leverage our USA and off-shore molding capabilities to deliver the right cord, when you need it.