Wieländer+Schill Coarse Thread Welding Studs (Ø 5 × 18 mm), 50 pcs | 297053
Product Overview
The Wieländer+Schill Coarse Thread Welding Studs (Item No: 297053) are premium, copper-plated consumable fasteners built for professional auto body structural repair and dent extraction. Expanding on the standard 14.2mm stud, this extended 18 mm version provides collision technicians with critical extra clearance when attaching thick multi-hook pulling claws, heavy-duty slide hammer nuts, or bridging across adjacent body lines.
Engineered for use with single-sided resistance spot welding guns, these studs allow you to establish a robust, threaded anchor point directly on bare metal. The coarse T5 thread delivers exceptional grip, preventing stripping under the immense hydraulic or manual pulling forces required to correct high-strength steel (HSS). The heavy copper plating ensures rapid electrical conductivity for a clean, secure weld, while the 4.8-grade steel core prevents shearing during aggressive pulls.
Key Features
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Extended 18mm Length: The extra length accommodates thicker pulling accessories and allows technicians to work around complex contours without the pulling tool binding against the vehicle panel.
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High-Conductivity Copper Plating: Heavily copper-plated to maximize electrical transfer during resistance welding, ensuring a deep fusion to the host panel without generating excessive heat that could warp the metal.
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Grade 4.8 Steel Core: Manufactured from high-strength 4.8 grade steel to withstand intense pulling pressure without the threads stretching or the stud snapping mid-pull.
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Coarse T5 Thread Profile: The aggressive coarse threading (T5) resists stripping out when threading on heavy-duty pulling fixtures, speeding up the attachment and removal process.
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Broad Equipment Compatibility: Designed to fit universally into standard 5mm (M5) stud welding electrode chucks, making them highly versatile for shops operating multiple brands of dent spotters.
Technical Specifications & Compatibility
| Property | Specification |
| Brand / Manufacturer | Wieländer+Schill |
| Product Name | Welding Studs | Coarse Thread | Ø 5 × 18 mm |
| Part Number (SKU) | 297053 |
| Thread Type | Coarse Thread (T5) |
| Dimensions | 5.0 mm Diameter × 18.0 mm Length |
| Core Material | High-Strength Steel (Grade 4.8) |
| Exterior Coating | Copper-Plated |
| Package Quantity | 50 Pieces per pack |
| W+S Compatible Welders | Wieländer+Schill Single Sided Spot Welding Gun (PSP GT), InvertaSpot series |
| Pro Spot Compatible Welders | Pro Spot AL-5, PS-DA5, PR-5 (when equipped with 5mm/M5 chuck part # 50-5502) |
| Other Compatible Makes/Models | GYS (Gyspot / GYSPOT Combi series), Dent Fix (Aluspot Mini / DF-900B), and Motor Guard Magna-Spot (requires 5mm collet adapter) |
Ideal Use Cases & Applications
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Thick-Claw Attachment: The 18mm length is ideal when using heavy-duty pulling bridges or hydraulic towers that utilize exceptionally thick pulling claws or multi-hook attachments.
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Deep Crease Extraction: Crucial for pulling structural creases on dog legs, rocker panels, and pillars where backside access is non-existent.
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Complex Contours & Body Lines: The longer stud allows pulling fixtures to attach securely even when the weld point sits deep within a concave body contour.
Common Questions (FAQs)
Q: What is the benefit of the 18mm stud over the 14.2mm stud?
A: The 18mm stud (297053) provides almost 4mm of extra thread length. This is highly beneficial when you're pulling hardware (like a heavy threaded eyelet or claw) that is exceptionally thick and requires more thread engagement to prevent stripping. It also keeps the pulling tool slightly further away from the painted surface, reducing the risk of collateral scratches.
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 need the specific stud welding electrode (Item No: 497023), which securely holds 5.0 mm and 6.0 mm studs. If using another brand like Pro Spot or GYS, ensure your gun is fitted with a standard 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. You must strip the immediate work area down to bare metal to ensure proper fusion between the stud and the vehicle panel.