Our lag screws or lag bolts have a pointed tip, these do not receive a nut. These structural fasteners are available as hex head lag, square head lag, and hand hammered irregular square head lags. All our lag screw / lag bolt options have an option for a hammered texture, pyramid head or a plain lag bolt head. Hex and square head lag screws are sold as 1/4", 5/16", 3/8", 1/2", 5/8", and 3/4" diameter.