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Thread data sheet. 5/8 - 24 UNEF : Basic Thread Dimensions (Pitch, minor & major diameters, depth, lead), Tolerance range for all applicable classes and much more.
5/16"-24 24 0.313 7.938 0.2629 0.2674 6.90 1.058 3/8"-24 24 0.375 9.525 0.3254 0.3299 8.50 1.058 7/16"-20 20 0.438 11.112 0.3780 0.3834 9.90 1.270 1/2"-20 20 0.500 12.700 0.4405 0.4459 11.50 1.270 9/16"-18 18 0.563 14.288 0.4964 0.5024 12.90 1.411 5/8"-18 18 0.625 15.875 0.5589 0.5649 14.50 1.411 3/4"-16 16 0.750 19.050 0.6763 0.6823 17.50 1. ...
23 Φεβ 2024 · The UNC thread chart referenced on the Engineering Toolbox page is a comprehensive table listing the dimensions and specifications for Unified National Coarse (UNC) threads as defined by ANSI/ASME B1.1 standards.
The standard defines diameter and pitch combinations along with allowances, tolerances, and designations. It has the same 60° profile as the ISO metric screw thread, but the basic dimensions of each UTS thread were chosen as an inch fraction rather than a millimeter value.
The Nominal Major Diameter and Threads-per-inch (Pitch) are defined by ANSI/ASME B1.1 and are the choices for the customary Unified screws and nuts. Nominal Diameter
UNF – Unified National Fine Thread. Female and Male UNC/UNF threads are both parallel. The UNC/UNF flank angle is 60°. Unified threads comes in three different classes: for applications where a liberal tolerance is required to permit easy assembly even with slightly nicked threads.
15 Απρ 2021 · Table 4 shows the tap and drill chart for Metric threads. Look up the desired pitch and thread percentage to find the corresponding outer diameter. Similar to the unified tap and drill section (see above), use the two formulas below to calculate the necessary size of the drilled hole.
