Thread Size (dia x pitch) (mm): M12X1.75 Bolt Length (mm): 300 Head Height (mm): 8 Bolt Type: Hex Head Coating: Zinc Flake Drive (mm): 18 Grip Length (mm): 251 Material: Steel Thread: Coarse Material Class 11.9. Head Marking - 11.9 (1170 MPa Ultimate Tensile Strength) Thread Size (mm): M12 Hole Thread Pitch: 1.75 Finish: Zinc Flake Total Bolt Length - 3 (mm): 300 Head Width - 5 (mm): 18 Head Height - 4 (mm): 8 Grip Length - 2 (mm): 251 Grade: 11.9 Finish Notes: Caterpillar is changing from Zinc Plating to a Zinc Flake finish for many bolts. The new coating improves corrosion protection to 720 hours. Until stock of the current plating is depleted, you may receive either finish due to the exhaust process. Overall Length (mm): 300 Color Notes: Bolts sizes M6 through M12 with the new Zinc Flake finish will be black. Bolts sizes M14 through M36 with the new Zinc Flake finish will be gray. Until stock of the current finish is depleted, you may receive either the current or new bolt color.