Hot Rod Forum : Hotrodders Bulletin Board - View Single Post - sae or metric hex more common in automotive?
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Old 10-30-2011, 11:00 AM
DanielC DanielC is offline
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You need what you need.
I have a few Datsun 521 trucks as a project. The engine is metric. The body is SAE. The pipe fittings on the engine are BSP (British Standard Pipe) Brake line flare nuts are 3/8-24, and there brake line is 3/16.

With most cars, you need both. With more modern cars, you will also need TORX or other odd type sockets/ or drivers. And then when you get the TORX drivers, you will find you need the security TORX drivers.
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