M5x12 Copper Plated Insulation Pin Steel Capacitor Discharge Studs Weld

Product Specification

M5x12 Copper-plated Steel Capacitor Discharge (CD) Weld Stud

1. Product Description

The M5x12 copper-plated steel capacitor discharge (CD) weld stud is a precision-engineered threaded fastener designed for rapid, reliable attachment to thin-gauge metal sheets using the capacitor discharge welding process. This stud features a standard M5 metric thread with a nominal length of 12 mm (overall length range available from 15 mm to 100 mm per customer requirements), making it ideal for applications requiring a secure threaded connection without pre-drilled holes or back-side access.

Manufactured from high-quality low-carbon steel with a copper electroplated finish, the stud offers excellent electrical conductivity for stable CD welding and moderate corrosion resistance. The flanged base conforms to EN ISO 13918, with a flange diameter of 6.5 mm and a typical flange thickness of 0.8–1.4 mm. The stud is designed for tip ignition CD welding, completing the weld in milliseconds and leaving minimal heat marks on the reverse side of the workpiece.

Available in various materials (copper-coated steel, stainless steel, aluminium alloy, brass) and grades (including AISI 316 on request), the M5x12 CD weld stud is widely used in sheet metal fabrication, electrical enclosures, automotive components, HVAC systems, and general industrial assembly.

2. Parameter Table

All dimensions in millimeters unless noted.

3. Key Features

• Copper-plated surface – Provides excellent electrical conductivity for stable CD welding and offers basic rust resistance during storage and handling.

• Compact flanged design – The 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.

• Wide length range – Standard 12 mm length, with custom lengths from 15 mm to 100 mm available to suit different 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.

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

• Customizable – Material (stainless steel, aluminum, brass), finish, length, and packaging can be tailored to customer requirements.

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

4. Applications

The M5x12 copper-plated CD weld stud is used in numerous industrial and commercial applications:

• Sheet metal fabrication – For attaching threaded studs to enclosures, cabinets, chassis, and panels without drilling or tapping.

• Electrical and control panels – To mount busbars, terminal blocks, cable clips, and electronic components.

• Automotive industry – For fastening trim, wiring harness clips, insulation pads, and small brackets to body panels or structural parts.

• HVAC systems – To fix insulation materials (rock wool, glass wool), duct liners, or support brackets onto air handling units and ductwork.

• Appliance manufacturing – Internal fastening points in washing machines, ovens, refrigerators, and other white goods.

• General industrial assembly – Wherever a threaded stud needs to be quickly and reliably welded to a steel surface, replacing rivets or adhesive bonding.

• Lighting and signage – For mounting LED drivers, junction boxes, or sign frames to metal backing plates.

Company Profile- anping county huihao wire mesh manufacture co.,ltd Huihao mainly produce: metal rings mesh, insulation fasteners, decoration metal mesh.

Huihao services include : pattern design frame design installation system design surface finished Mould customization