Good point MB. The finer thread bolts are typically all 8.8 and above by default, some 10.9, rarely 12.9 - thats unbrako territory and too potentially brittle for the application. I recall seeing a lot of 10.9 bolts. This is stamped on the head. I doubt you could find 4.6 in a fine thread commercially, certainly not a bunnings purchase.Originally Posted by MB
Apologies, a wee bit munted relaxing tonight, should there be any consideration for strength grade bolts of potential baby ‘safety’ seats in OEM floors…..4.6/8.8/12+?
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