These are replacement bolts for the Little Tikes Double Duty Workbench. Included are both flat and Phillips head as well as a matching nut (not part of the original playset AFAIK). I think there is some sort of nail too, but I don't have one to go off of other than pics on the web. Hope this is useful to someone else.Prints without any supports. If you print it perfectly vertical then the layers line up and the bolt can split if tightened too much--even by a kid. However, if you tilt it about ~3 degrees and then cut off the bottom to flatten (Cura has a setting to cut off a specified amount) then the layers get staggered slightly and it is much stronger to extensional stress. The head then looks slightly skewed but it will last longer...