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TC 1

Screw threads

• Secretariat: SAC
• Secretary: Prof. Xiaobin Li
• Chairperson: Mr. Sitian Gao (China) until end 2010
• Creation date: 1947

• Work programme
  (drafts and new work items of TC 1)

• Business plan (TC)
• Working area on ISOTC

Scope:

Standardization of series of internationally interchangeable fastening and traversing screw threads with a minimum variety of basic profiles, pitches and diameters including tolerances and verification.

Total number of published ISO standards related to the TC and its SCs:	23
Number of published ISO standards under the direct responsibility of TC 1:	23
Participating countries:	14
Observing countries:	21

ISO committees in liaison:

TC 2, TC 114, TC 153/SC 1

Organizations in liaison:

WCO

Subcommittees/Working Groups:

Subcommittee/Working Group	Title
TC 1/WG 13	ISO Miniature screw threads The convener can be reached through the secretariat
TC 1/WG 14	Terminology The convener can be reached through the secretariat