304 Stainless Steel M5x8 CD Flanged Metric Projection Weld Studs Polishing Surface Treatment

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.