Capacitor discharge (CD) weld studs fuse to thin sheet in 1–5 milliseconds with no drill hole, no filler and no reverse-side marking – the fast way to add external threads on painted, coated or finished panels. Helefastener supplies flanged (PT) and non-flanged (IT) threaded studs in mild steel copper plated, 304 stainless steel, aluminium alloy AlMg3 and lead-free brass, plus non-flanged and aluminium variants for weight-critical builds.

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- Flanged PT studs – general purpose: see the flanged CD weld stud specification
- Non-flanged IT studs – lower profile, smaller weld footprint
- Steel, stainless and aluminium bodies – matched to parent material
Deciding between CD and drawn-arc? The guide CD weld studs vs. arc stud welding compares thickness range, marking and cycle time.
