Lag bolts, also known as wood lag screws or hex lag bolts, are heavy-duty fasteners with a hex or square head and coarse pointed threads, ideal for securing wood to wood or wood to metal. At Adfast Components, we manufacture lag bolts in a wide range of materials and grades, complying with both metric and imperial standards including UNC, UNF, UN, and ISO thread profiles. Our offerings cover various sizes, thread types, torque values, and ASTM specifications—ensuring precision, strength, and durability for every application.