The 2 In. stainless steel staple is used to install tongue and groove flooring over ACQ Lumber or application where corrosion with hardwood floors is a concern. Use with PNI 472 Portamatic-S Flooring Stapler or any Flooring Stapler requiring 1/2 In. Crown, 2 In. - 15 gauge staples. You can depend on this staple to keep your floor in place and to fight corrosion and rust. This is the most effective method of installing 3/4 In. tongue and groove flooring to a sub floor with joist over crawl space construction. Applications include 1/2 In., 9/16 In. and 5/8 In. 3/4 In. and 33/32 In. tongue and groove flooring and ACQ exterior porch decking. Staples are glued into clips to make loading into your tool quick and easy. Staples are packed in quantities of 5000 and one carton will cover approximately 1000 sq ft of flooring. Please check our product listings for the 2 In Staple, # 47281, when a smaller quantity is needed. All PNI products are backed by our ISO 9001 Quality Management System.