M3m4m5m6 SUS304 316 Spot Welding Bolt M8m10m12 Weld Stud 50mm 1/2" DIN32501

• Customization: Available
• Material: Stainless Steel
• Type: T Head
• Model NO.: M3-M12
• Connection: Common Bolt
• Head Style: Round
• Standard: DIN, ANSI, GB, BSW
• Grade: A2/A4
• Finish: Polishing
• Color: Silver
• 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

Stainless Steel Spot Welding Stud Bolt

Base Material: Austenitic stainless steel (AISI 304/316 per ASTM A276) 

 Tensile strength: 515-620MPa (304) / 620-795MPa (316)
 Chromium content: 18-20% (304) / 16-18% (316)
 Nickel content: 8-10.5% (304) / 10-14% (316)
 Surface Treatment: Passivation per ASTM A967 (nitric acid method)

 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:

Maintains identical dimensional specs as original (M3-M12 / #6-1/2")
Special consideration: 15% thermal expansion coefficient difference vs carbon steel

 Chemical Processing: Reactor assemblies with acidic/alkaline exposure
 Marine Engineering: Offshore platform electrical systems
 Medical Devices: MRI-compatible equipment installations

Intergranular Corrosion Test: ASTM A262 Practice E (304L/316L variants)
Ferrite Content: ≤0.5% for optimal weldability 

Specification

Product Name	Spot Welding Stud
Material	Stainless Steel 304 316
Grade	A2-70/A4-80 Ect
Surface Treatment	Polished
Color	Silver
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).