Specifications : Standard : DIN 74361 form H or as per customer specification Material : EN 8D/AISI 1045, EN 19/42Cr4Mo2 ISO property class : 8, 10 Thread : I.S.O. metric (fine & rough), UNF / UNC Surface treatment : Phosphate, Auto black, Dichromate, Geomet Common sizes : M18x1.5, M20x1.5, M22x1.5, M