Stud Stud 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. Continuous Thread Studs Clamping Type Studs Tap End Studs (1.5D Engagement) Double End Studs Length Tolerances — LT for Continuous Thread and Clamping Type Studs, and L for Tap End Studs Products Fasteners Bolts Nuts Washers Stud Bolt PED Approved Fasteners SERVICE DOWNLOADS Brochure PDF