The ISO 286 Standard uses an alphanumeric code (e.g., ) to define fits.
: Permanent assemblies where friction must transmit torque. Fit Tolerance
: H7/p6 (light press), H7/s6 (medium drive fit for gear hubs). The ISO 286 Standard uses an alphanumeric code (e
: Rotating shafts, sliding parts, or items that need easy hand-assembly. or items that need easy hand-assembly.