Partial thread (IFI-111)

(Note: Shorter lengths are found under full thread.) These bolts are sometimes called Frame bolts. A hexagonal head for use with a wrench. Meets IFI-111 (2002).

• Zinc plated grade 5 steel

  A tempered medium carbon steel. Grade 5 falls between grade 2 and grade 8 in strength, and is commonly found in automotive applications. Zinc plated for moderate corrosion resistance.

• Zinc plated grade 8 steel yellow

  A tempered medium carbon steel. Grade 8 is stronger than grade 5, and is commonly found in high strength automotive applications. Zinc plated for moderate corrosion resistance.

• Grade 8 steel plain finish

  A tempered medium carbon steel. Grade 8 is stronger than grade 5, and is commonly found in high strength automotive applications. Unplated finish.