This is a listing for two packages of Herschel Adams brand rivets, 5/8 x 5 1/2. One 1-LB box is zinc-plated oval head rivets (product number R36-0462D), and the other 1-LB box appears to be regular steel countersunk rivets (product number R36-0463D). Both packages were bought some time ago, but are still sealed.
Ships for free.