5/16-18 X 6 Thread Cutting Screws / Torx / Flat Head / Steel / Black Phosphate / Type F Tested in accordance with AISI

Tested in accordance with AISI S905 and ICC-ES AC500 for attaching Miscellaneous Building Materials to Steel

Stalgard® and Stalgard® SUB Coatings provide improved corrosion resistance as well as enhanced galvanic compatibility in dissimilar metal applications

Everything else is included here and presented in a handy blow-molded carrying case with a locking tab to keep it shut

The slotted aluminum sleeve helps to hold fast without loosening or backing out even with internal and external vibrations

have a large flanged head

5/16-18 X 6 Thread Cutting Screws / Torx / Flat Head / Steel / Black Phosphate / Type F Tested in accordance with AISI