Wieländer+Schill Coarse Thread Welding Studs (Ø 5 × 9.0 mm), 50 pcs | 297055

Product Overview

The Wieländer+Schill Coarse Thread Welding Studs (Item No: 297055) are the most compact variant in the W+S copper-plated fastener lineup. Measuring an ultra-short 9.0 mm in length, these specialized consumables are engineered for precision dent extraction in tight clearances or for applications where technicians need the pulling hardware to sit as close to the bare metal surface as possible.

Designed for use with professional single-sided resistance spot welding guns, these studs allow collision technicians to establish a heavy-duty, threaded anchor point. Because of their short profile, they experience significantly less leverage and flex during a pull compared to longer studs. The aggressive coarse T5 thread prevents stripping, while the heavy copper plating ensures rapid, secure electrical fusion to the vehicle panel without excessive heat transfer.

Key Features

• Ultra-Short 9.0mm Length: The compact design minimizes the distance between the pulling tool and the panel, reducing sideways leverage on the weld nugget and maximizing direct outward pulling force.

• High-Conductivity Copper Plating: Heavily copper-plated to ensure an optimal electrical ground during the resistance spot welding process, creating a robust, structural weld quickly.

• Grade 4.8 Steel Core: Manufactured from high-strength 4.8 grade steel, providing the tensile strength necessary to withstand aggressive pulling without shearing.

• Coarse T5 Thread Profile: Features an aggressive coarse thread (T5) that allows for rapid attachment of pulling nuts and resists stripping under heavy slide-hammer impacts.

• Broad Equipment Compatibility: The standard 5mm base diameter allows these studs to fit universally into M5 stud welding electrode chucks across major dent spotter brands.

Technical Specifications & Compatibility

Ideal Use Cases & Applications

• Tight Clearance Areas: Ideal for repairing damage in confined spaces (like door jambs or intricate inner structural panels) where standard or extended studs and bulky pulling hardware simply won't fit.

• Direct Slide Hammer Pulls: The short length minimizes the "flex" or bending moment on the stud when using a slide hammer, ensuring the kinetic energy goes directly into pulling the dent outward rather than bending the fastener.

• Shallow Surface Corrections: Excellent for minor but rigid creases on high-strength steel (HSS) where you need a strong weld but only require a low-profile pulling nut or eyelet.

Common Questions (FAQs)

Q: Why use a 9.0mm stud instead of the standard 14.2mm stud?
A: The 9.0mm stud (297055) is chosen when space is highly restricted, or when you want to eliminate as much flex as possible. A shorter stud keeps the pulling tool closer to the panel, which directs the pulling force straight out and reduces the chance of the stud bending or the weld breaking prematurely under lateral stress.

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). For other brands like Pro Spot, GYS, or Dent Fix, 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. Resistance spot welding requires a solid electrical ground. The immediate work area must be ground down to bare metal to ensure a strong fusion between the stud and the vehicle panel.

Search Keywords: Wieländer+Schill 297055, W+S 9mm welding studs, Pro Spot 5mm studs, Gyspot compatible studs, Dent fix 5mm studs, short coarse thread dent studs, 5x9mm weld on stud, auto body stud welder consumables, direct dent pulling.