Copper Plated Spot Welding Stud Bolt with Tip Ignition M3m4m5m6 Threaded Bolt DIN32501

• Customization: Available
• Material: Carbon Steel
• Type: T Head
• Model NO.: M3-M6
• Connection: Common Bolt
• Head Style: Round
• Standard: DIN, ANSI, GB, BSW
• Grade: 4.8/8.8/10.9/12.9
• Material Type: Iron/Steel
• Surface: Copper Plated
• Color: Prune
• Measurement: Metric/Inch
• Package: Bluk/Bag/Box/Pallet/Customized
• Usage: for Welding
• Transport Package: Bluk/Bag/Box/Pallet
• Specification: M3*20mm-M10*100mm/Other
• Origin: China
• Production Capacity: 30000000
• Package Size: 20.00cm * 20.00cm * 20.00cm
• Package Gross Weight: 3.000kg

Product Description

Product Description

Copper Plated Spot Welding Stud Bolt

Base Material: Low carbon steel (C1018/C1045 per ASTM A510) with tensile strength 400-550MPa
Coating: Electrolytic copper plating (5-20μm thickness) conforming to ISO 2081, providing:58% IACS conductivity (vs 30% for zinc plating)
Reduced contact resistance (≤0.5mΩ at 10N·m torque)
Hydrogen embrittlement prevention vs cadmium alternatives

Metric Series: M3-M12 diameters, 20-100mm lengths (per GB/T 902.3)
Imperial Series: #6-1/2" diameters, 1/4"-4" lengths (per ANSI B18.2.1)
Thread Types:

Metric: Coarse (M) and fine (MF) pitch
Imperial: UNC (coarse) and UNF (fine) threads

Automotive: Battery terminal connections (copper-steel transition joints)
Electronics: EMI shielding enclosures (copper's conductivity >97% IACS)
Energy: Busbar assemblies requiring low-resistance joints

Coating Adhesion: ≥80% copper retention post-welding (per ISO 4521)
Dimensional Tolerance: ±0.05mm on shank diameter
Hydrogen Embrittlement Relief: 200°C×4h baking for 8.8+ grade bolts

Specification

Product Name	Spot Welding Stud
Material	Carbon Steel/Iron/Alloy Steel
Grade	4.8/8.8/10.9/12.9
Surface Treatment	Copper Plated
Color	Prune
Measurement	Metric/Inch
Size	M3-M12/Other Customized/#6-1/2"
Length	20mm-100mm/Other Customized/1/4"-4"
Service	Support OEM/OBM/ODM Customized Service

Packing & Delivery

Bulk/Fiber Bag/Neutral packing

Carton/Box

Wood Pallet/Box

Bagged packaging is ideal for smaller quantities of fasteners. The fasteners are placed in durable plastic bags, which are then sealed to protect the contents from moisture and dust. Each bag is clearly labeled with product details and quantities. This packaging is easy to handle and transport for smaller orders, making it convenient for workshops and retail settings.

Boxed packaging offers a more structured solution for medium to large quantities of fasteners. The fasteners are packed in sturdy cardboard boxes, which provide additional protection against physical damage during transit. The boxes are designed to stack neatly, optimizing storage space. Each box is labeled with essential information, ensuring easy identification and inventory 

Palletized packaging is used for bulk shipments of fasteners. Multiple boxes or bags are securely strapped onto a pallet, creating a stable and easily transportable unit. This method is highly efficient for large-scale distribution and warehousing. Palletized packaging ensures that large quantities of fasteners can be moved quickly and safely using forklifts, reducing handling time and labor costs.

Company Profile

Certifications

FAQ

Q: What is the estimated lead time for orders?
A: Our estimated lead time is 15-30 days for 1-2 containers and extends to 30-45 days for 3-20 containers, ensuring timely delivery.
Q: Are you a professional manufacturer?
A: Absolutely! We have proudly been at the forefront of manufacturing since 1995.
Q: Is it possible to request a customized size?
A: Indeed! We offer customization services to tailor products precisely to your design specifications.
Q: What export documentation do you provide?
A: Our comprehensive export package includes a Commercial Invoice, Packing List, Bill of Lading, and COC, among other essential documents.
Q: How can I place an order?
A: Simply contact us via email or phone to receive a quote and finalize your order with a Purchase Order (PO).