ISO 2903:1993
ISO metric trapezoidal screw threads; tolerances

Standard No.

ISO 2903:1993

Release Date

1993

Published By

International Organization for Standardization (ISO)

Status

Be replaced

Replace By

ISO 2903:2016

Latest

ISO 2903:2016

Scope

Specifies a tolerance system for threads according to ISO 2902; the system does not apply to threads with special requirements on axial displacement (e.g. lead screws); gives the structure of the system and tabulates pitches from 1.5 up to and including 44, comprises basic major diameters over 5.6 mm up to and including 355 mm; includes recommended tolerance classes for bolt and nut threads.

ISO 2903:1993 history

• 2016 ISO 2903:2016 ISO metric trapezoidal screw threads - Tolerances
• 1993 ISO 2903:1993 ISO metric trapezoidal screw threads; tolerances
• 1977 ISO 2903:1977 ISO metric trapezoidal screw threads — Tolerances