29. Symbols for Standard Threads

  • Japan

Thread symbols Kinds of threads Related Standards

Metric screw threads Miniature screw threads Unified threads, Coarse series Unified threads, Fine series Metric Trapezoidal screw threads Taper external pipe threads (JIS main book) Taper internal pipe threads (JIS main book) Parallel internal pipe threads (JIS main book) Parallel pipe threads (JIS main book) Parallel pipe threads (JIS Appendix) Taper pipe threads (JIS Appendix) Parallel internal pipe threads (JIS Appendix)

Screw threads for rigid metal thin-walled conduit and fitting Screw threads for rigid metal thick-walled conduit and fitting Cycle threads Screw threads for sewing machine (2001.2.20repeal) Threads per inch Electric socket and lamp-base threads Tire valve threads of automobile Tire valve threads of cycle

■ISO

Thread symbols Kinds of threads Related Standards

ISO Metric threads ISO Miniature screw threads ISO Metric trapezoidal screw threads

  • ISO Unified threads, coarse series ISO Unified threads, fine series ISO Unified threads, extra fine series ISO Unified threads, constant pitch series Aerospace - UNJ threads (coarse) Aerospace - UNJ threads (fine) Aerospace - UNJ threads (extra fine) Aerospace - UNJ threads (constant pitch series) Aerospace - MJ threads Taper external pipe threads Taper internal pipe threads Parallel internal pipe threads Parallel pipe threads Glass container threads Tire valve threads