Show sample as: 72-frame QuickTime VR or 360-frame QuickTime movie loop.    My periodic table poster is now available! Ordinary zinc-plated bolt and nut. This is a perfectly ordinary hardware-store variety galvanized (zinc-plated) steel bolt and nut. Source: Farm & Fleet Contributor: Theodore Gray Acquired: 8 April, 2009 Text Updated: 9 April, 2009 Price: $1 Size: 2" Purity: <1%