... B18.3, DIN6912 or other as per your need.2.Bolt material:8.8 grade, F10T, 10.9 Grade steel, 12 ... plated, chromated, zinc plating of various colour and etc.4.Bolt size: M3-M48, #0-#10, 1/4-4"5.Surface ... of charges.C. Quality control sustems1.Quality Certificate: ISO9001:2008, ISO14001:20042. Inspection quality system: ISO standard, 100% Whole range inspection ...