Somehow lost the tensioner bolts after installing a new water pump. Anyone have any idea what size bolt it is? Google is giving mixed answers, happy new year and thank you!

 

It'll be 10mm std thread (1.25m?) x whatever length allows it to go through the brackets and whatnot to reach the threads it screws into by 10-15mm or so. Lots of those bolts are 45 - 70mm long. Factory ones had a roundish tip to them to aid automatic eqpt blasting em in.