The Lumberlok SSJH47120 Joist Hanger are designed to be used where a strong rigid joint is required between timbers butting together at 90 deg. This makes its use in connecting floor joists to beams, and trusses or rafters to beams/bearers commonplace. This hangar has been made from grade 304 stainless steel which gives it superior corrosion resistance. This hangar can be used in exterior applications where moisture may occur, including coastal zones. It is recommended that this joist hangar is fixed using 30 mm x 3.15 mm nails or Type 17 – 12 g x 35 mm screws.