The following thread tolerances are standard on all IMU dies. If requested, IMU can manufacture dies having tighter tolerances. Special thread profiles are included in the manufacturing program of IMU.

Pitch: + / - 0.0004" for 1" of threaded section

Thread profile angle: + / - 15'

Lead angle: + / - 0.0007" on 4"

Addendum, Dedendum, top & bottom Radii: + / - 0.0002"