Lumberlok Joist Hanger 47 x 90mm Zinc Galvanised SKU: 170336 MODEL: JH4790 Error. try again later You've successfully joined the club $ 2 .36 each Available on orders $50 to $1500. More info × Mitre 10 SAvailable at selected stores. Check your local store for details Variants Designed for use where a strong, rigid joint is required between members meeting at 90 degrees, e.g. truss/joist to beam, or rafter to bearer connection. Features and benefits Fixed using LUMBERLOK Product Nails 30mm x 3.15mm diameter, or type 17-12g x 35mm hex head screws.