The Porta-Nails 1-1/2 in. 18-Gauge L-Head Flooring Nails are manufactured from steel and are designed to reduce splitting of hardwood flooring tongues. This relatively thin nail has sharp serrated edges and a blunt tip. These attributes allow the nail to bite into hardwood flooring without causing dimpling, splitting or slitting. Use with 1/2 in. - 5/8 in. engineered, bamboo and solid hardwood floors. Comes in a box of 1,200. Collated tape holds nails together helping eliminate waste due to breakup. Compatible with Porta-Nails model 418A Portamatic Evolution 18-Gauge Pneumatic L-Cleat Floor Nailer.