A traditional nut used for all bolting and fastening applications. Plated in Trivalent Chromium (Cr3) Zinc Standard metric thread Please note boxed are Class 8 to DIN 267-4" Thread Dia. mm: M16 Socket Size mm: 24 Height mm: 13.0 Thread Type: Metric Finish: Zinc & Clear Cr3 Material: Carbon Steel Timco Hex Full Nuts - Zinc (Size M16 - 100 Pieces) in Clear