1253297 CATERPILLAR 125-3297: M20 X 2.5 Hexagonal Head Bolt | Cat® Hexagonal Head Bolt for drive axle mounting evenly distributes forces to prevent excess stress on axle components

Thread Size (dia x pitch) (mm): M20X2.5
Bolt Length (mm): 260
Head Height (mm): 13
Bolt Type: Hex Head
Coating: Zinc Flake
Drive (mm): 30
Material: STEEL
Grip Length (mm): 195
Thread: Coarse
Material Description: ISO 898-1 Class 10.9. Head Marking - 10.9 (1040 MPa Ultimate Tensile Strength)
Thread Size (mm): M20
Hole Thread Pitch: 2.50
Total Bolt Length - 3 (mm): 260
Finish: Zinc Flake
Head Width - 5 (mm): 30
Head Height - 4 (mm): 13
Grip Length - 2 (mm): 195
Grade: 10.9
Locking Feature: 0
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): 260
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.