A fully threaded, grade 8.8 high tensile set screw used in a wide variety of applications. NOTE: Nuts not included. Plated in Trivalent Chromium (Cr3) Zinc Manufactured from grade 8.8 carbon steel" Thread Dia. mm: M20 Length mm: 65 Head Type: Hex Socket Size mm: 30 Thread Type: Metric Finish: Zinc & Clear Cr3 Material: Carbon Steel Timco Set Screws - Grade 8.8 - Zinc (Size M20 x 65 - 25 Pieces) in Silver