7/16 x 2-1/2" Hex Machine Bolt A307 Grade A Steel (Quantity: 50) Plain Steel, Coarse Thread, Partially Threaded, 7/16-14 x 2-1/2"

Diameter-Threads Per Inch: 7/16-14 | Length: 2-1/2 inch | A307 is the specification for carbon steel bolting, studs, and threaded rod with 60,000PSI tensile strength. Standard Hex Head