dumb question.

vendredi 29 juillet 2016

The bolts that bolt one of our rock grapples to the rotec bearing on the hanger came loose.

I can tighten them until the bolt stops but there's a flat washer under the bolt head thats still just a little loose.
Whats going on? Did the bolts grow or did the holes get shallower? I've never seen this before.

5/8" x 2" course grade 8. 24 total.


dumb question.

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