0897990 CATERPILLAR 089-7990: M20 X 2.5 Hexagonal Head Bolt | Cat® Hexagonal Head Bolt for drive axle housing mounting Provides secure fastening and prevents loosening due to vibrations

Thread Size (dia x pitch) (mm): M20X2.5
Bolt Length (mm): 250
Head Height (mm): 13
Bolt Type: Hex Head
Coating: Zinc Flake
Drive (mm): 30
Material: STEEL
Grip Length (mm): 185
Thread: Coarse
Material Description: ISO 898-1 Class 10.9. Head Marking - 10.9 (1040 MPa Ultimate Tensile Strength)
Head Width - 5 (mm): 30
Head Height - 4 (mm): 13
Grip Length - 2 (mm): 185
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.
Finish: Zinc Flake
Total Bolt Length - 3 (mm): 250
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.