Carlisle 57B Weld-on Welding Pins 1/2 Inches 5000 Count Pail

Product Description

The Carlisle 57B Weld-On Welding Pins are a bulk-quantity fastening solution designed for HVAC insulation installation and sheet metal fabrication work. This pail contains 5,000 pins at 1/2 inches in size, giving contractors and installers the supply they need for large commercial or industrial jobs without repeated restocking. Each pin is manufactured from carbon alloy steel and produced through a unique cold-form hardening process that sharpens and tempers the point. This means the tip will not blunt or flatten on contact with sheet metal, which is a common failure point with lower-quality welding pins. The result is a more consistent, reliable weld every time. The sharper point of contact also reduces the number of sparks generated during the welding process. Fewer sparks lower the risk of igniting adhesives or burning insulation substrates, a critical safety consideration during mechanical insulation work. These pins are compatible with any conventional portable or automatic resistance welding unit, making integration into existing workflows straightforward. No special equipment is required. The cup-style washer head design is engineered to compress the insulation surface sufficiently during application without tearing or damaging the material. This protects insulation integrity and ensures a clean, secure attachment. The pins create an immediate and permanent mechanical connection to the metal substrate. The galvanized steel composition and 10-gauge construction add durability and resistance to corrosion in demanding environments. Manufactured in the USA, these pins meet the quality standards expected by professional HVAC technicians, sheet metal workers, and insulation contractors on commercial and industrial projects.

• Cold-form hardening process produces sharp, temper-hardened points that resist blunting and flattening during welding
• Reduced spark generation lowers risk of igniting adhesives or burning insulation substrates during application
• Cup-style washer head compresses insulation surface without tearing, ensuring clean and secure fastening

Product Highlights

The Carlisle 57B delivers 5,000 high-quality 1/2 inches weld-on pins in a single pail, built for professional-grade insulation attachment to sheet metal with consistent, reliable welds and minimal spark output.

Product Information

Standard Information

• Brand: CARLISLE
• Manufacturer Part Number: 57B

Technical Specifications

• Size: 1/2 inches
• Quantity: 5000 Pins per Pail
• Gauge: 10 GA
• Composition: Galvanized Steel
• Unit of Measure: Each
• Weight: 30 pounds
• Height: 13.25 inches
• Length: 13.5 inches
• Width: 12 inches
• Country of Origin: USA
• UPC: 638532805352