Wieländer+Schill Coarse Thread Welding Studs (Ø 5 × 14.2 mm), 50 pcs | 297052

Product Overview

The Wieländer+Schill Coarse Thread Welding Studs (Item No: 297052) are highly specialized, copper-plated consumable fasteners designed for professional auto body dent extraction and structural repair. Specifically engineered for use with single-sided resistance spot welding guns, these studs allow collision technicians to quickly establish a heavy-duty, threaded anchor point on a damaged vehicle panel.

Once welded directly to the bare metal surface, the coarse T5 thread provides exceptional grip for attaching slide hammers, pull bars, or threaded eyelets. This enables precise, targeted pulling on deep creases or heavy structural damage where traditional glue-pulling methods would fail. The copper plating ensures optimal electrical conductivity for a fast, clean weld, while the high-strength steel core prevents the stud from shearing under intense pulling pressure.

Key Features

• High-Conductivity Copper Plating: The exterior of each stud is heavily copper-plated to maximize electrical transfer during the resistance welding process, ensuring a deep, secure fusion to the host panel without excessive heat spread.

• Grade 4.8 Steel Core: Manufactured from robust 4.8 grade steel, providing the necessary tensile strength to withstand aggressive hydraulic or manual pulling without the threads stretching or the stud snapping.

• Coarse T5 Thread Profile: The aggressive coarse threading (T5) is specifically designed to resist stripping out when attaching heavy-duty pulling fixtures, allowing for rapid attachment and removal of pulling nuts.

• Broad Equipment Compatibility: Designed to fit perfectly into any standard 5mm (M5) stud welding electrode chuck, making these studs highly versatile for collision centers utilizing multiple brands of dent pullers.

• Optimized Dimensions: At 5 mm in diameter and 14.2 mm in length, these studs provide an ideal balance long enough to attach thick pulling claws or nuts, yet compact enough to weld into tight creases or body lines.

Technical Specifications & Compatibility

Ideal Use Cases & Applications

• Deep Crease Extraction: Essential for pulling deep, structural creases on rocker panels, dog legs, and A/B/C pillars where backside access is completely obstructed and immense pulling force is required.

• Heavy Collision Repair: Used in conjunction with bridge pullers or hydraulic pulling towers to gradually manipulate high-strength steel (HSS) back into factory dimensional tolerances.

• Custom Anchoring: Creating temporary, heavy-duty mounting points on bare metal during complex fabrication or custom bodywork modifications.

Common Questions (FAQs)

Q: What electrode do I need to weld these studs?
A: If you are using the Wieländer+Schill Single Sided Spot Welding Gun (PSP GT), you will need the specific stud welding electrode (Item No: 497023), which is designed to securely hold 5.0 mm and 6.0 mm diameter studs during the welding process. If using another brand like Pro Spot or GYS, you must ensure your gun is fitted with an M5 (5mm) stud holder chuck.

Q: Do I need to remove the paint before welding these studs?
A: Yes. Because this process relies on resistance spot welding, you must strip the work area down to bare metal to ensure a solid electrical ground and proper fusion between the stud and the vehicle panel.

Q: Are these studs reusable?
A: Generally, no. While the threads may survive a pull, the base of the stud is permanently fused to the vehicle panel. Once the pull is complete, the stud is typically cut off, and the remaining weld nugget is ground flush with the panel.

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