The PORTER-CABLE PNS18050 1/2-Inch, 18 Gauge Narrow Crown (1/4-Inch) Staple is designed for use with a 18 gauge Fastener. Galvanized coated staples. Crown width of 1/4". There are 100 staples per stick / 5,000 total staples in a box. Can be used with DEWALT®: D51420K, D51422K; Porter Cable: NS100B, NS150B and HITACHI: N3804AB, N3804AB2; SENCO: SKS, SLS18, SLS20XP, SLS25XP; and RIDGID: R150SFA. 2750-4299 Features: -Staples.-Use with Stapler NS100A (2750-4232).-Narrow crown.-18 gauge.-1/2".-5,000 per box. Dimensions: -1/4" width.