Hardware for duct systems, damper controls, latches & hinges; accessories door gaskets Latch, Clevis pin, Knurled pins, Snap rings, Clevis, Snap fastener, Cleat, Pawls, Connecting or coupling pins, Aligning pins, Twist ties, Rings and links, Grommets, Hasps, Hinges, Hardware staples, Turnbuckles, Strapping or banding buckles, Aluminum ducts or ductwork