6 Window and door hardware made primarily of metal, namely, operators, locks, tracks, brackets, handles, cranks, knobs, hinges, leversets, rollers, pulls, sash lifts, latches, pivot bars, push-bar operators, vent stops, snubbers, strike plates, corner keys, keepers, foot bolts, header bolts, limit devices, support arms, casement operators, door handle set kits comprising metal handles, hinges, locks, and latches, doorknobs, door bolts, electromagnetic interference shielding gaskets and radio-frequency interference shielding gaskets; metal nailing fins and metal window balance assemblies, and metal channels for sliding screen frames, for glazing and for pile weather stripping