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United States Department of Transportation United States Department of Transportation

Neck Threads Inspection: External

July 31, 2007

Basic guidelines for the inspection and evaluation of DOT/TC cylinder (tube) mounting threads with outside diameter greater than or equal 18".

Key Words: neck threads, DOT cylinder, tube, threads, external, inspection

If you have any technical questions not addressed by this or associated documents, contact Mark Toughiry, 202-366-4545.

[NOTE: The attached documents are in PDF format, you can download a free viewer.  If you have problems accessing the PDFs or the information, report your problem for further assistance.]

Last updated: Monday, November 27, 2017