2003 Toyota Corolla Metric bolt head markings

2003 TOYOTA COROLLA
Avatar
CARGO
  • MEMBER
  • 2 POSTS
2003 Toyota Corolla

What does the two slash markings (II) on the heads of the four metric rear axle hub & bearing assembly bolts indicate. Those don't seem to be standard markings for metric bolts.
Thanks
Sep 8, 2009 at 12:31 PM
Advertisement
Avatar
MMPRINCE4000
  • ✓ASE Certified Mechanic
  • 8,548 POSTS
  • ASE Certified Mechanic
Not a standard metric mark.

Metric bolts have the strenght stamped on the head, 8.8, 9.8,10.9,11.9.12.9.

Studs have a cross + stamped on them.

If replacing suspension bolts M8x1.25 or larger use at least a 10.9 bolt strength.
Sep 9, 2009 at 5:34 AM
Join 2CarPros for free, one of the most advanced car repair communities on the internet. From first-time drivers to seasoned mechanics, everyone is welcome to reply, share details, and get better answers. You can add a temporary image or video first; uploads are limited to 20 MB.
Ask a Free Question
Repair Safety Notice: This information is for general instructional purposes only. Vehicle repair can be dangerous. Verify all information, follow manufacturer service procedures, use proper tools and safety equipment, and consult a qualified repair shop when needed.