Nelson Fastener Systems Flanged Unthreaded Capacitor Discharge Stud TFNC / TFNS / TFNA

These unthreaded studs are designed to be welded to thin sheet material by the initial “gap” or “contact” method of stud welding using tip ignition according to the capacitor discharge (CD) weld process. These applications generally provide a weld bond strength that is greater than the strength of the thin base material to which they are welded. Flanged unthreaded capacitor discharge studs are commonly used as locator or stop points. They may also be tapped with internal threads, or have smaller diameter externally threaded extensions These studs have a flanged weld base that is about 1/16” greater than the nominal stud diameter. The flange increases the weld bond area for greater reliability, and come in lengths up to 1-1/4”. For superior welding results, mild steel studs are copper flash plated, stainless studs are passivated, and aluminum studs are acid etched.

These unthreaded metric studs are designed to be welded to thin sheet material by the initial “gap” or “contact” method of stud welding using tip ignition capacitor discharge weld process. These applications generally provide a weld bond strength that is greater than the strength of the thin base material to which they are welded. These studs have a flanged weld base that is about 2mm greater than the nominal stud diameter. The studs are fully threaded, and come in lengths up to 50mm.