Tap bolts, Steel, 5/16"-18 x 1-3/4"

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

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