A traditional nut used for all bolting and fastening applications. Manufactured from A2 Stainless Steel offering superior corrosion resistance, perfect for external applications. Stainless steel must be used where there is corrosive environment and/or the base material has inherent corrosive characteristics. Standard metric thread" Thread Dia. mm: M5 Socket Size mm: 8 Height mm: 4.0 Thread Type: Metric Material: Austenitic Stainless Steel (A2-304) Timco Hex Full Nuts - Stainless Steel (Size M5 - 50 Pieces) in Silver