An alloy hardened cylindrical Dowel Pin with a chamfer on both ends. Dowel Pins are commonly used to retain parts in a fixed position to preserve alignment, as pivots, hinges, shafts, jigs, and fixtures to locate or hold parts. For a tight fit, your hole should be equal to or slightly smaller than the diameter shown. They are made in alloy steel hardened for heavy duty use.
Pins meet ASME B18.8.2 specifications.