304 Stainless Steel M5x8 CD Flanged Metric Weld Stud

1. Product Description

The 304 stainless steel M5x8 CD flanged metric weld stud is a high-performance threaded fastener specifically designed for capacitor discharge (CD) welding to thin-gauge sheet metal. It features a standard M5 metric thread and a nominal length of 8 mm . The stud is manufactured from AISI 304 stainless steel, providing excellent corrosion resistance, good mechanical properties, and a polished surface finish.
304 stainless steel offers superior rust and chemical resistance compared to copper-plated steel, making it suitable for outdoor, humid, or mildly corrosive environments. The stud is available in various lengths (15–100 mm as standard; 8 mm on request) and can be customized further.

2. Parameter Table

3. Key Features

• 304 stainless steel construction – Excellent corrosion resistance for outdoor, marine, and industrial environments; polished finish provides aesthetic appeal.

• CD flanged design – The integrated flange ensures consistent weld penetration, reduces spatter, and helps maintain perpendicular alignment.

• Fast and clean welding – Capacitor discharge process completes the weld in 1–3 milliseconds, leaving minimal heat discoloration on the reverse side of the sheet.

• No back-side access required – Ideal for closed sections, boxes, or assemblies where only one side is accessible.

• Customizable length – Although standard lengths start from 15 mm, we offer 8 mm as a custom order to suit specific insulation or component thicknesses.

• Thread versatility – M5 thread allows secure fastening of nuts, brackets, or other threaded components. Also available in M3, M4, M6, M8, M10.

• Complies with EN ISO 13918 – Ensures dimensional compatibility with standard CD welding equipment worldwide.

• Sample and small order support – Low MOQ and free samples for qualification.

4. Applications

The 304 stainless steel M5x8 CD flanged weld stud is widely used in:

• Sheet metal fabrication – Attaching threaded studs to stainless steel enclosures, cabinets, and panels without drilling or tapping.

• Electrical and control panels – Mounting busbars, terminal blocks, cable clips, and electronic components where corrosion resistance is required.

• Automotive industry – Fastening trim, wiring harness clips, and small brackets to stainless steel body panels.

• HVAC systems – Fixing insulation materials (rock wool, glass wool) to air handling units and ductwork, especially in humid or outdoor environments.

• Marine and coastal equipment – Providing reliable threaded attachments on boats, docks, and offshore structures.

• Food processing and medical equipment – Stainless steel material meets hygiene and corrosion resistance standards.

• General industrial assembly – Replacing rivets or adhesive bonding with a fast, clean, and strong welded stud.

5 .Flange Design (EN ISO 13918)

The integrated flange (FD = 6.5 mm) offers multiple benefits:

• Increased welding contact area – Distributes welding force evenly, reducing electrode wear.

• Self-alignment – Helps keep the stud perpendicular to the workpiece surface.

• Fillet formation – The flange edge melts slightly during welding, forming a small fillet that increases joint strength and fatigue resistance.

6. Material Advantage – 304 Stainless Steel

304 stainless steel provides excellent resistance to oxidation and corrosion in most atmospheric conditions. It is non-magnetic in the annealed condition and has good weldability. For CD welding, the polished surface ensures consistent electrical contact and a clean weld appearance. The corrosion resistance makes it suitable for applications where copper-plated steel would rust.

For technical support, sample requests, or a quotation for 304 stainless steel M5x8 CD flanged metric weld studs, please contact Huihao Wire Mesh Manufacture Co., Ltd.