
IKING is a professional manufacturer of cup head weld pins, insulation fasteners, and stud welding solutions for global industrial customers. With over 30 years of manufacturing experience, IKING provides reliable fastening products designed for HVAC systems, industrial insulation, marine applications, and construction projects.
Our cup head pins for insulation are engineered to create a strong mechanical connection between insulation materials and metal surfaces. Our insulation pins work perfectly with capacitor discharge stud welders. They offer strong holding power, quick fitting, and long service life across all harsh industrial workspaces.

Cup head weld pins, also known as cuphead pins or insulation welding pins, are specialized metal fasteners used to secure insulation materials onto steel, aluminum, or sheet metal surfaces.
A typical insulation fastening system consists of:
Step 1: Clean the metal surface
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Step 2: Weld cup head pins using a CD stud welding machine
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Step 3: Install insulation material
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Step 4: Secure insulation with washers
The fast welding process helps reduce labor costs and improves installation efficiency for large-scale insulation projects.
IKING supplies standard and customized cuphead weld pins according to different insulation applications.
| Item | Specification |
|---|---|
| Product Name | Cup Head Weld Pins |
| Material | Low Carbon Steel / Galvanized Steel / Stainless Steel |
| Stainless Steel Grade | SS304 / SS316 Available |
| Pin Diameter | 10 GA (3.4mm), 12 GA (2.7mm) |
| Pin Length | Customized |
| Washer Diameter | 30mm / 38mm (1-3/16" / 1-1/2") |
| Surface Treatment | Zinc Plated / Copper Plated |
| Welding Method | Capacitor Discharge Stud Welding |
| Application | HVAC, Industrial Insulation, Marine, Construction |
IKING cup head pins for insulation provide excellent holding strength compared with conventional adhesive insulation fasteners.
Advantages include:
✔ Strong welding connection
✔ High vibration resistance
✔ Long service life
✔ Suitable for high-temperature environments
✔ Reliable insulation support
For professional insulation installers, installation speed directly affects project cost.
Using a high-performance cuphead pin welder (capacitor discharge stud welder) with IKING cup head weld pins ensures a fast, stable, and high-strength connection.
The CD welding process provides:
This makes IKING insulation fastening systems suitable for HVAC contractors, shipbuilders, and industrial maintenance companies.
As an experienced insulation fastener manufacturer, IKING supports OEM and ODM production.
Customization options include:
Customers can request:
Available packaging:
IKING helps distributors and contractors develop reliable insulation fastening solutions according to regional market requirements.

HVAC systems require secure insulation installation to improve energy efficiency and reduce heat loss.
IKING cup head weld pins are widely used for:
Industrial equipment often operates under high temperatures and continuous vibration.
Cup head insulation fasteners are suitable for:
Marine environments require corrosion-resistant fastening solutions.
Stainless steel cuphead pins are commonly used for:
Besides cup head weld pins, IKING provides a complete range of insulation fastening products.
Our product portfolio includes:
By supplying both fastening components and welding equipment, IKING provides a complete one-stop insulation installation solution.
Related products:

Founded in 1995, IKING specializes in welding technology, industrial fasteners, and insulation fastening systems.
Our advantages:
✔ Professional manufacturer in China
✔ Complete production capability
✔ OEM & ODM service available
✔ Strict quality inspection
✔ Export experience worldwide
✔ One-stop welding and fastening solution
Every batch of IKING cup head weld pins is inspected before shipment.
Quality checks include:
Our quality management ensures stable performance for international customers.
Cup head weld pins are used to fix insulation materials onto metal surfaces in HVAC systems, industrial equipment, marine applications, and construction projects.
Cup head pins are normally installed with a capacitor discharge stud welding machine or dedicated cuphead pin welder.
Yes. IKING provides OEM customization including material, diameter, length, washer size, coating, and packaging.
Cup head pins are suitable for:
Looking for a reliable manufacturer of cup head weld pins and insulation fasteners?
IKING provides high-quality cup head pins for insulation, cuphead weld pins, insulation stick pins and washers, and complete stud welding solutions for global buyers.
Contact IKING today for samples, technical support, OEM production, and competitive bulk pricing.