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They look good, you might want to chase them to remove any debris.
For $650 and this is a common issue, how about you chase them get rid of the debris and get a real look at clean threads or if there are any. Just sayin'
I chased the t stat threads. Only the back one had slight resistance.
i don’t have a 8mm chaser so I cleaned the bolts threads on a 8mm bolt and ran it in all the runner mounting holes.
One base to runner bolt hole threads look like there might be some missing. Runners bolt on so I don’t think it’s a issue. Can’t seem to get a clear picture of the threads.
$550 shipped in the states.