Can you teach me more about lug bolts & related tire tools?
On Sunday, February 18, 2018 at 2:37:31 AM UTC-10, Fredxx wrote:
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> Why? Not all nuts have this mark, and in the UK nuts with this mark are
> generally used for hoses that contain inflammable gases.
My guess is that the lug nutz are marked that way to indicate the grade of the fastener in this critical application.
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