Full thread (IFI-111), Serrated

Serrated heads are designed to prevent loosening. A hexagonal head for use with a wrench. Meets IFI-111 (2002).

• Stainless steel 18-8

  The most common stainless steel for general hardware use.

• 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

  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.