(50 Pieces) 5/16-18x3-1/2" Alloy Flat Head Socket Cap Bolts Screws UNC Coarse Partial Threads Black Oxide

Material:Alloy Steel Grade Rating:Alloy Steel Thread Size:5/16"-18 Exterior Finish:Black Oxide Head Style:Flat SocketYou may also like Hanger Bolts, M10 X 200 Mm, Pre-Assembled, V2A, Height-Adjustable, for Photovoltaic Solar Mounting Roofs, 16 Pack,16 x hanger bolts,silver.