0993649 CATERPILLAR 099-3649: M8-1.25 x 40mm Hex Head Bolt | Metric, Coarse Thread UNC

Thread Size (dia x pitch) (mm): M8X1.25
Bolt Length (mm): 40
Head Height (mm): 5
Bolt Type: Hex Head
Coating: Zinc Plated
Drive (mm): 13
Grip Length (mm): 3.75
Material: Steel
Thread: Coarse
Material Description: ISO 898-1 Class 10.9. Head Marking - 10.9 (1040 MPa Ultimate Tensile Strength)
Thread Size (mm): M8
Hole Thread Pitch: 1.25
Finish: Zinc Flake
Total Bolt Length - 3 (mm): 40
Head Width - 5 (mm): 13
Head Height - 4 (mm): 5
Grip Length - 2 (mm): 3.75
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): 40
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.