I'd have replaced the bolts with 5/16-20 x 1.25 before I went to Grainger for metric nuts.
Mind you, I have no animosity toward Grainger, unlike, for example Frito-Lay/Pepsico, Taco Bell, Adidas, Nike, Campbell Soup, KFC, OPGI, and Transweiser Busch. I just wouldn't wait that long when SAE bolts can be had locally.
Mind you, I have no animosity toward Grainger, unlike, for example Frito-Lay/Pepsico, Taco Bell, Adidas, Nike, Campbell Soup, KFC, OPGI, and Transweiser Busch. I just wouldn't wait that long when SAE bolts can be had locally.