3 Mm Mild Steel Spot Stud Welding Insulation Pins With Copper Coating Surface
Product Description
Our 3mm diameter spot weld insulation pins are commonly used in industrial applications, with options for 4mm or 5mm diameters also available. These pins are manufactured from mild steel, aluminum, or stainless steel material, among which, mild steel material with copper coating surface is very popular.
Huihao Hardware Mesh Product Limited is a professional manufacture of insulation pins and washers, our insulation pins and washers are with good quality and price, and are widely used for industrial insulation, commercial insulation, marine insulation etc. We choose high standard raw materials, use fully automatic production line and quality controy system, supply good after-sale service. If you are in need of insulation pins and washers, please feel free to ask me a price, or sample.
| Product Name | Mild Steel Spot Weld Insulation Pins With Copper Coating Surface |
|---|---|
| Factory | Huihao Company |
| Material | Mild steel (stainless steel, or aluminum also available) |
| Surface Finish | Copper plated or galvanized steel |
| Diameter | 10GA, 12GA, 14GA, 3mm |
| Length | Custom lengths available |
| Self Locking Washers | Available in all kinds of shapes, sizes and materials |
| Application | Attaching insulation to various metals |



- Standard weld points for easy welding
- Soft pins for easy bending
- Sharp points for easy penetration through insulation blankets
- Available in multiple lengths from 3/4" to 7"
- Customizable materials and plating options
Material: Low carbon steel, Aluminum, Stainless steel
Plating: Copper plating for low carbon steel, no plating for aluminum or stainless steel
Self-locking washer: Available in all kinds of shapes, sizes and materials
Pin Diameter: 10GA (3.4mm), 3mm, 12GA (2.7mm), 14GA (2.0mm)
Pin Length: 3/4" to 7" in various increments

- 100 pcs, 200 pcs, 300 pcs, or 500 pcs in one plastic bag (depending on pin length)
- 10 bags in one carton box
- Packed on pallets for shipping
- Custom packaging available upon request
We are a manufacturer located in Hebei province, China.
Yes, we can customize the material, size, and packaging according to your requirements.
Standard products: Free samples available for common type and size.
Custom products: There is sample cost for customized samples.
Shipping costs are the customer's responsibility via DHL, FedEx, TNT, UPS, or EMS.
We implement strict quality control measures including pre-production confirmation, production monitoring under IATF 16949 Quality Management System standards, and providing production/shipment documentation.
- Competitive pricing as direct manufacturers
- Automated production ensures on-time delivery
- Products meet international quality standards
- Comprehensive after-sales service
Introduction Of Huihao Hardware Mesh Product Limited
Supplier Name: Anping Huihao Hardware Mesh Product Limited
Physical Address: 300M Of Wanggezhuang ST, Anping City, Hebei Province, China 053600
City & State: Anping
Business License: 91131125060474443D
Social Credit Code: 91131125060474443D
Founded in 1999, Huihao Hardware Mesh Product Limited is located in Hebei Anping county, which has the reputation of "Home Of Wire Mesh". It covers an area of nearly 6000 square meters, total assets of nearly 100 million yuan.
We own 80 machines for woven wire msh, 30 CNC machines for perforated metal and expanded metal, 20 machines for mesh screen, 3 production lines for making wire and 2 production lines for insulation pin.
Get in Touch
Have questions about our products or want to discuss a custom order? Our team is ready to help you.

