Galvanized Steel Duct Liner Pins 4 Inch For Air Duct Fiberglass Insulation
Duct Liner Pins are widely used to fasten insulation materials onto steel duct work or other steel surfaces. Used with a duct liner pin welder, the pins are directly welded to the metal after piercing through the insulation, significantly reducing labor costs for fiberglass insulation ductwork.
| Attribute | Value |
|---|---|
| Product name | Galvanized Steel Duct Liner Pins 2 Inch For Air Duct Fiberglass Insulation |
| Brand | HUIHAO CUSTOM |
| Material | Carbon Steel |
| Base Size | 25mm or 30mm is standard |
| Surface | Copper plated, galvanized |
| Nail Diameter | 1.8mm, 2.0mm, 2.7mm, 3.0mm, 3.4mm |
| Samples | Support |
| Nail Length | As your requirement |
- Material: Carbon Steel with copper coating for nails and zinc coating for heads
- Beveled Head: Designed to prevent cutting of insulation material
- Head Size: 1-3/16" (30mm) with 0.5mm thickness
- Nail Diameter Options: 10Gauge/3.4mm, 11Gauge/3.0mm, 12Gauge/2.7mm
- Custom Lengths: Available from 25-300mm
- Strong riveting on base for secure attachment
- Excellent welding performance
- Free samples available
- Fully customizable sizes
Material: Galvanized Steel
Base Size: 30mm
Nail Diameter: 2.7mm
Nail Length: 25mm
Custom sizes and materials available
Material: Galvanized Steel
Base Size: 30mm
Nail Diameter: 3.4mm
Nail Length: 105mm
Custom sizes and materials available
Base Material: Galvanized Steel
Base Size: 30mm
Nail Material: Copper Coated Mild Steel
Nail Diameter: 2.7mm
Nail Length: 125mm
Custom sizes and materials available
Duct liner pins are typically applied using a capacitor discharge stud welder. The installation process involves placing insulation onto a metal surface, pushing the weld pins through the insulation, and welding the entire fabrication in one efficient step.
These labor-saving fasteners are widely used in commercial and industrial applications for thermal and acoustical insulation systems.

- 1000 pcs / 2000 pcs / 3000 pcs per carton
- 48 cartons per pallet
- Custom packaging available upon request
We are a manufacturer located in Hebei province, China.
Yes, we can customize material, surface finish, wire diameter, and length according to your requirements.
Yes, we provide samples for quality confirmation.
Yes, we accept small orders for common sizes.
- Confirm all details before quoting
- Reconfirm specifications before production
- Implement IATF 16949 Quality Management System standards
- Provide production and shipment updates with videos and photos
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Have questions about our products or want to discuss a custom order? Our team is ready to help you.