The PF series of top-flange hangers are designed for common light-frame applications. These economical hangers are for use with 2x4 and 2x6 members. The patented double-shear nailing design distributes the load through two points on each joist, providing greater strength with fewer nails. Features: Self-jigging design for automatic vertical alignment provides quick installation Diamond holes to temporarily fasten the connector for easy alignment and attachment Cannot be modified Seat width: 1-9/16-in Nominal joist size: 2x4 Made from 18-Gauge steel ZMAX galvanization offers extra corrosion resistance for exterior and treated-wood applications Install with 0.148 in. x 3 in. nails Simpson Strong-Tie here.