A threaded rod, also known as a stud, is a relatively long rod that is threaded on both ends; the thread may extend along the complete length of the rod. They are designed to be used in tension. Threaded rod in bar stock form is often called all-thread. For studs that are not completely threaded, they're usually made as per customer specified specifications. 

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Threaded Rods are available from M8 to M25 sizes in both GI and M.S. finish.