Carlisle 107B Weld-on Welding Pins 3/4 Inches 5000 Count Pail

Product Description

The Carlisle 107B Weld-On Welding Pins are a bulk supply solution for HVAC insulation installation professionals. This pail contains 5,000 individual 3/4 inch welding pins made from carbon alloy steel with a 10-gauge thickness. These pins are designed to mechanically attach insulation blankets, duct liner, and other insulation substrates directly to sheet metal ductwork and metal surfaces. HVAC installers, duct fabricators, and mechanical contractors rely on weld-on pins for fast, permanent insulation attachment in commercial and industrial systems.

Each pin is cold-formed to produce a consistently sharp point. This cold-form hardening process gives the tip a steel temper that resists blunting and flattening on impact. A sharper contact point means better arc formation during resistance welding, which translates to stronger, more reliable welds. The sharper tip also reduces excess sparks during the welding process. Fewer sparks lower the risk of igniting adhesives or scorching insulation substrates, making this pin a safer choice on the job site.

The 107B pins are compatible with any standard portable or automatic resistance welding unit. No special equipment is required. The surface treatment on each pin promotes consistent weld quality from the first pin to the last pin in the pail. These pins are manufactured in the USA from galvanized-compatible carbon alloy steel. The cup-style washer design depresses the insulation surface without tearing the facing material, protecting the integrity of the insulation system. Whether used on fiberglass duct liner, rigid board, or flexible insulation blanket, the 107B delivers a permanent mechanical bond to the metal substrate without adhesives or additional fasteners.

• Cold-form hardened sharp point resists blunting and produces consistent, strong welds
• Reduced sparks during welding lower the risk of igniting adhesives or burning insulation substrates
• Compatible with any conventional portable or automatic resistance welding unit

Product Highlights

The Carlisle 107B provides 5,000 sharp-tipped, 10-gauge carbon alloy steel welding pins in a single pail, giving HVAC and insulation professionals a reliable, high-volume fastening solution for attaching insulation to metal ductwork and substrates.

Product Information

Standard Information

• Brand: CARLISLE
• Manufacturer Part Number: 107B

Technical Specifications

• Size: 3/4 inches
• Quantity: 5000 pins per pail
• Gauge: 10 GA
• Composition: Carbon Alloy Steel
• Country of Origin: USA
• Unit of Measure: EA
• Weight: 35 pounds
• Height: 13.25 inches
• Length: 13.5 inches
• Width: 12 inches
• UPC: 638532805369
• Prop 65: No