API 5B 5.5.2 THREAD ADDENDUM Per API 5B 5.5.2, Thread addendum “shall be measured on round thread.” TA-3002 Thread Addendum Gage Inspecting a Part Thread addendum is now a required, mandatory element to be inspected. Contact us for more info or simply request a quote below!
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Thread height is the distance between the crest and the root of the thread, normal to the axis of the thread. Several issues are easily detected by simply inspecting thread height. Proper thread height maximizes the performance of any threaded connection. Thread height inspection is required by API. Thread height affects the interchangeability and the […]
Back to the Basics: Thread Addendum What is Thread Addendum? We’ve had a few questions on the subject of thread addendum, so we’d like to take a moment for clarification. Thread Addendum is simply the distance from the thread crest to the pitch line. Addendum is a shorter distance than the Thread Height. Further, Addendum […]