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ISO 6696:1989

Cycles — Screw threads used in bottom bracket assemblies

Dec 14, 1989

General information

90.93     Oct 28, 2025

ISO

ISO/TC 149

International Standard

43.150  

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Published

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Scope

Specifies the thread profile and limits and tolerances for the screw threads used to assemble bottom bracket cups to bottom brackets on bicycles. It is based on the use of the ISO basic thread profile, satisfactory interchangeability with the corresponding B.S.C. thread, the use of screw thread tolerance grades and tolerance positions and the use of gauges made to ISO 1502.

Life cycle

NOW

PUBLISHED
ISO 6696:1989
90.93 Standard confirmed
Oct 28, 2025