Ya know, it does look like a hinge nail--but it is not. (But now I'm pissed 'cause I bought a stainless steel version of the above for $25 and maybe all I needed was a frickin' hinge nail!!!!!!)
Gynodontia? How about 'vaginal dentata:" And the 'Rape Condom" & "Rape Tampon"? >http://en.wikipedia.org/wiki/RapeaXe#Rape-aXe>
We have a winner! TigerInTally has ID'd the object. It is a guide rod for a recoil spring for a Sig P220. Apologies if I am not supposed to offer parts instead of an entire object. You can blame Martin who, I am told by Kyle, won't play by the rules--so I had to throw up a quickie. Tiger--you're up! Oh, I can't answer the other question, Tiger. I try to stay out of hillbilly pootie.