The PORTER-CABLE 23GA Micro Pin Nail Gun Nails are 1-3/8 inch steel nails with a head diameter of 23 ga. This pack includes 2000 nails with a metallic finish. These nails are designed for use with nail guns and are perfect for various fastening applications in the business and industrial sector. The micro pin nail design allows for precise and secure fastening, making them a reliable choice for professionals.