[最も選択された] 1/4-20 unc 2b pitch diameter 338031-What pitch is a 1/4 20 thread
Nominal Thread Size Covered Range 080 UNF to ¼56 UNS Nominal thread sizes from 080 UNF to ¼56And 1A, 2A, and 3A for external threads All are considered clearance fits That is, they UNC (coarse), UNF (fine), and 8UN (8 thread) A chart listing the standards sizesExternal Thread Dimensions for Unified UNC Screw Threads Diameter Pitch TPI Thread Fit Class Major Diameter Pitch Diameter Minor Diameter Stress Area Max Min Max Min Max Min in² No 1 64 2A No 2 56 2A Helicoil Tap Chart Helicoil Tapping Chart Helicoil Tap Size Helicoil Tapping Size Helicoil What pitch is a 1/4 20 thread
