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    • Images courtesy of PTR Group
    Caption: Premium couplings are machined to the tightest tolerances and may incorporate substantial design changes, often to the threads.
    Couplings & Fittings

    High tolerance threaded couplings surpass API standards

    Del Williams
    Sept. 19, 2023
    Partnering with a coupling expert can help meet the industry’s most rigorous tolerance and quality standards.