Joist Hanger Nails - 304 Stainless Steel 9 x 0.148 x 1-1/2" High shear strength, resists forces that make materials faces slide against each other These nails are well-suited for resisting storms, strong winds, and hurricanes Made of 304 stainless steel making it ideal for severe, harsh and saltwater/marine environments 304 stainless steel joist hanger nails should only be used with 304 stainless steel joist hangers and framing connectors. Joist hanger nails are used to connect joist hangers to the joists or wood studs they will be supporting. Joist hanger nails are short and heavy gauge nails, providing increased holding power without fully penetrating the wood.