Class 10.9 metric hex bolts deliver high tensile strength and are offered in coarse, fine, and extraāfine thread pitches. Available in DIN 933/961 fullāthread and DIN 931/960 partialāthread formats, including rare sizes such as M12×1.0 and M9×1.25. These hardened steel bolts provide durable, longāterm fastening performance in demanding mechanical assemblies.