Just got a used one. Removed the 3 tightning bolts as they were rusty. If I get stainless to replace I'm guessing they would gall. How abt the 'green' ones. The higher grade bolts? Do the bearing get lubed? It spins freely now. I did clean they out as there was a bit if grime in the race. K9IL PS: they are 3/8 x 16 TPI if anyone is interested