This ad is a group of 55 vintage automotive OEM fasteners that were removed from a vehicle around the mid 1960's to late 1970's. There are 19 ea. UNC 1/4" X 20 TPI SAE grade 5 fasteners with captive large flat washers. There are 11ea. UNC 5 /16" X 18 TPI grade 5 fasteners that have captive flat washers and 2ea have a flange head. There are 26ea. UNC 3/8" X 16 TPI, 2 of which are flange headed while the rest have captured flat washers and 14 have a captured lock washer. These fasteners were made in th U.S.A. and they are vintage and marked with what looks to be an anchor symbol, and have a black oxide surface finish. These fasteners are not modified and come with a free return warranty. Although they are designed for a specific automotive chassis, it is a rare find for collectors and enthusiasts and will also work for fixes that are not as extensive or technical as automotive repair.