Cup head weld pins are insulation fasteners designed for permanent installation of duct liner or other insulation materials to HVAC ductwork and sheet metal. They are also effective for attaching insulation to architectural panels in commercial and industrial applications, including curtain walls and sound control systems.

• Name: Cup head weld pins, Self sealing pins
• Material: Mild steel
• Head: 30 mm Beveled edge washer
• Head Base: 0.4-0.5mm
• Pin Diameter: 14Ga, 12Ga, 11Ga, 10Ga
• Pin Length: 19mm to 120mm in various sizes
• Head types: Without insulated, With insulated paper, With insulated film

Without insulated

With insulated paper

With insulated film

• Excellent insulation fastening solution
• Suitable for wide range of insulation products
• Made of durable mild steel
• Applied with standard welding equipment
• Insulation is secured with an insulation washer after welding

Application: Used for fastening insulation material on metal surfaces

Installation Steps:

1. Hang the insulation
2. Directly weld the pins through the insulation materials

Available in quantities of 1000, 1500, 2000, 3000, or 5000 pieces per package. Custom packaging quantities available upon request. Packaging options include cartons or plastic buckets, then palletized for shipment.

Carton Packaging

Bucket Packaging

• Are you a manufacturer or trader? We are a manufacturer located in Hebei province, China.
• Do you support product customization? Yes, both material and size can be customized.
• Can I get samples? Yes, we provide free samples for quality evaluation.
• How do you ensure product quality? We implement strict quality control measures including pre-production confirmation, IATF 16949 Quality Management System standards, and production monitoring.
• What are your advantages? Competitive pricing, on-time delivery, excellent quality, and good after-sale service.