Helefastener flanged CD weld studs (capacitor discharge type) weld to sheet metal in milliseconds with a flange that gives the joint stability and a clean load-bearing face. Because CD welding needs no drill hole and leaves no reverse-side mark, these studs are the standard choice for panels that must stay smooth on the blind side – switchgear, enclosures, decorative fronts. Materials cover mild steel with copper plating, 304 stainless steel, aluminium alloy AlMg3 and lead-free brass; the flanged format is also available as non-flanged (IT) type.

Specifications

Parameter	Value
Weld method	Capacitor discharge (CD)
Materials	Mild steel (copper plated), 304 stainless steel, aluminium alloy AlMg3, lead-free brass
Variants	Flanged (PT) / non-flanged (IT); threaded studs
Size range	M3–M5 metric standard; other sizes on request
Parent materials	Steel, coated / zintec / hot-rolled steel, stainless steel, aluminium and alloys, brass, copper

When CD beats arc stud welding

CD welding suits thin sheet roughly 0.5 mm and up, thin coatings and fast cycle lines; drawn-arc welding takes over on thicker plate where the weld must carry heavier loads. If you are weighing the two processes for a production line, our CD weld studs vs. arc stud welding comparison walks through thickness, marking, cycle time and equipment cost.

For weld testing, confirm parent material and coating with our engineers via the quote form or WhatsApp; free samples let you run trial welds before committing a line.