ISO general purpose metric screw threads - Part 51: External screw threads for transition fits (former: screw threads for interference fit); tolerances, limit deviations, limits of sizes
|Publication Date:||1 August 2005|
|ICS Code (Metric screw threads):||21.040.10|
This standard specifies the tolerance classes for external threads to be paired with internal threads of tolerance class "fine" (4H and 4H5H) as in DIN ISO 965-1. This pairing of threads aims to achieve an interference fit; however, it should be noted that the actual dimensions of the external and internal threads in the transition tolerance zone will result in either clearance or interference in the threaded joint.