| Torque for Hexagon Head Screws with UNF Threads Table |
| Preloads and tightening torque for steel shank screws with UNC/UNF threads and head contact area sizes according to ASME B18.2.1, ASME B18.3 and ASME B18.2.2 friction coefficient µ = 0.14, Utilization of minimum yield = 90% |
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| Torque Table Hexagon Screws with UNC Threads Table |
| Typical Torque for Hexagon Head Screws with UNC Threads. Preloads and tightening torque for steel shank screws with UNC/UNF threads and head contact area sizes according to ASME B18.2.1, ASME B18.3 and ASME B18.2.2 |
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| Internal ACME Thread General Purpose Size Chart |
| The following table defines recommended industry standard sizes for Internal ACME General Purpose Threads per American National Standard ASME/ANSI B1.5. All dimensional data is given in inches. |
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| External ACME Thread General Purpose Size Table Chart |
| External general purpose ACME Thread size table chart There are three classes of General Purpose ACME threads, 2G, 3G, and 4G each class provides some clearance on all standard size diameters for free movement, and are used in assemblies with the internal thread rigidly fixed and movement of the external thread in a direction perpendicular to its axis limited by its bearing or bearings. |
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