Search results
Thread data sheet. x. 1/4 - 20 UNC : Basic Thread Dimensions (Pitch, minor & major diameters, depth, lead), Tolerance range for all applicable classes and much more.
2 1/2-4 unc 0.0031 2.2290 2.2670 2.3376 2.3511 0.0135 2.5000 2 1/2-8 un 0.0024 2.3650 2.3900 2.4188 2.4294 0.0106 2.5000 2 3/4-4 unc 0.0032 2.4790 2.5170 2.5876 2.6013 0.0137 2.7500 2 3/4-8 un 0.0025 2.6150 2.6400 2.6688 2.6796 0.0108 2.7500 3-4 unc 0.0032 2.7290 2.7670 2.8376 2.8515 0.0139 3.0000 3-8 un 0.0026 2.8650 2.8900 2.9188 2.9299 0. ...
UNC thread chart including major diameter, pitch diameter and minor diameter dimensions of UNC screw threads according to ASME B1.1 standard.
Basic designation syntax: Nominal Diameter in Inch Fraction. Pitch in TPI. Series: UNC / UNF / UNEF / UN. Class: 1A, 2A, 3A, 1B, 2B or 3B. Diameter: From 1/4″ and above the diameters are given in inch fractions.
23 lut 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.
Metric External (Fasteners) Thread and Fastener Sizes M20 - M50. Screw Thread Designations, Minor Diameter, Major Diameter, Pitch Diameter. ANSI/ ASME INTERNAL Screw Thread Size Chart. All units are in inches. Unified Screw Threads per. ANSI/ASME B1.1-1989 (R2001), R2001) Nomenclature, are used.
4 lis 2012 · 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.