According to Mar-K's website link they would be 1/4-20 x 5/8" hex head bolts.
I was waffling between 1/4-20 and 5/16-18 till I looked. My memory isn't that good, since I took my bed apart 5 years ago.
Kevin 1951 Chevy 3100 work truck Follow this saga in Project Journal Photos 1929 Ford pickup restored from the ground up. | 1929 Ford Special Coupe (First car) Busting rust since the mid-60's If you're smart enough to take it apart, you darn well better be smart enough to put it back together.
