Cup head pin is a of insulation weld pin, they were generally produced by a mild steel weld nail with a galvanized or cooper coated mild steel round washer. The head diameter is available in 25mm, 30mm and 38mm, the nail diameter is available in 14 Gauge (2.0mm), 12 Gauge( 2.7mm) or 10 Gauge (3.4mm), the material is available in stainless steel too.

Cuphead pins were installed usually applied with a capacitor discharge stud welder, the application is very easy, hang insulation on the sheet metal of ductwork,HVAC, and press the cup head pins through the insulation, weld them directly to secure insulation material by the weld gun.

Cup head insulation weld pins with paper washer is for welding through aluminium foil faced insulation materials, pins with tube is for welding through tin foil faced insulation materials. They are widely accepted as cost-effective metal fasteners in the thermal insulation and acoustic insulation markets.

• Cup Head Pins For Duct Insulation
  
• Material :Stainless steel, mild steel
  
• Surface treatment :Zinc plating or cooper plating for nail,
  
• zinc plating for head
  
• Head diameter: 1″/1.18″/1.5″(25mm,30mm,38mm)
  
• Head Thickness :0.5mm as standard
  
• Pin diameter: 10Gauge(3.4mm), 12 Gauge(2.7mm) , 14 Gauge(2mm)
  
• Standard length :10mm-200mm are available
  
• Application: HVAC insulation,ductwork insulation, acoustic insulation
  
• Packing :1000pcs/carton