These lag screws from Allied Bolt provide a robust solution for attaching pole line hardware to telephone poles and other wooden structures. Constructed from Grade 2 steel, they feature a hex head measuring 1/2 inch across the flats and exhibit a Rockwell Hardness ranging from B70 to B100, ensuring reliable strength and durability. For added protection against corrosion, these screws are hot dip galvanized to meet ASTM Specification A153, making them ideal for use in various outdoor applications. At a size of 5/16 inch and a length of 1-1/2 inches, they are specifically designed to meet the demands of aerial hardware and pole installations.