Hillman 190051 Coarse Thread Hex Bolts, Zinc Plated, 1/4" x 4", 100-Count BRAND NEW! THE BOX WAS OPENED AND INSPECTED. Hex bolts are machine bolts that have been designed to adhere facing materials to prevent shear movement. Specifically in wood to wood, wood to metal, or metal to metal applications. Zinc grade 2 hex bolts are recommended for most general uses and are corrosion resistant for typical use. Be sure to pre-drill any holes and to use washers and nuts that are a similar grade and finish. Length: 4" Diameter: 1/4" Finish: Zinc-plated Machine bolt designed to fasten facing pieces of wood and/or metal Partially threaded shank allows for a stronger grip between objects and less shear movement Grade 2: appropriate for most general use (match with Grade 2 washer) Zinc coating for corrosion resistance Pre-drill holes for best results 1 C-Pak per sellable unit 100 pieces per retail package.