[最も人気のある！] 1/4-20 unc thread dimensions 181938-1 4 20 unc thread minor diameter
Thread Pitch Chart Thread series cover designations of diameter/pitch combinations that are measured by the number of threads per inch (TPI) applied to a single diameter Coarse Thread Series (UNC/UNRC) is the most common designation for general application bolts and nutsThe UNC/UNF flank angle is 60° Unified threads comes in three different classes forANSI/ ASME INTERNAL Screw Thread Size Chart All units are in inches Unified Screw Threads per ANSI/ASME B1119 (R01), R01) Nomenclature, are used Industrial Nuts Size Charts American Fastener 1 4 20 unc thread minor diameter