This article was updated Jan. 17, 2023. It was originally published Oct. 21, 2004. Using the correct thread is critical for proper mating and replacing hydraulic fittings. First and foremost, it is a ...
Despite being standardised in the late 1800s, BA threads, the British Association threads used in old electrical equipment, including vehicle magnetos, are based on the metric system. A BA0 bolt has ...
Like it or not, Detroit's going metric. New-design engines, chassis, and drivetrains are in most instances entirely metric. Older engines and chassis may have a combination of both standard (English) ...