Hex lag screws are large wood screws. Although the term “lag bolt” is often used to describe this product, technically they are a screw since lags are installed in wood by rotating the six-sided head. The lag thread is deeper and sharper than national coarse thread since it is designed to drive into wood and not to be used with a nut. Imported hex lag screws normally originate from Asia, possess a gimlet point, and meet the requirements of ASTM A307 Grade A. Portland Bolt can manufacture lag screws to meet other ASTM specifications or when the project requires domestically manufactured lag screws. Manufacturing Portland Bolt manufactures lag screws from 1/2″ diameter through 1-1/2″ diameter in most ASTM, AASHTO, and SAE specifications. Special tooling can be created to produce nonstandard head dimensions or bolt heads with your company’s name and/or logo. Unless otherwise specified, nonstandard lag screws manufactured by Portland Bolt…