FREE SHIPPING 5 LBS Grip Rite 1-1/4″ BRIGHT RING SHANK Underlayment Nails New open box came from hardware store that closed down, may be repack for shipping. See pictures for what you are buying. Grip-Rite fasteners are the choice of contractors who want professional results from a brand they know and trust. Grip-Rite underlayment nails are used when attaching plywood or sheathing over existing wood floors or floor joists. Underlayment nails have a ring shank for greater holding power. For laying plywood or composition underlayment over existing wood floors or floor joists Ringed shank for greater holding power Flat head with a diamond point Bright, uncoated steel finish intended for use where corrosion resistance is not required Interior use