Duro Dyne 26232 Sloped Washer Weld Pin 1-1/2 Inch Ctc

Product Description

The DURO DYNE 26232 is a CTC-series sloped washer weld pin used as a mechanical insulation fastener in HVAC ductwork fabrication. The pin provides a strong anchor point for duct liner, securing insulation firmly to the duct surface while allowing a smooth transition from the insulation face down into the quilting depression. At 1.5 inches in pin size with a 1-inch diameter washer and a pin diameter of 0.13 inches, this fastener is built for consistent, repeatable placement during duct assembly. Sheet metal workers and HVAC fabricators install these pins during new duct construction and liner retrofit work.

The 26232 is suited for residential and light commercial HVAC duct liner applications where insulation must be mechanically secured before adhesive sets or as the primary retention method. The sloped washer profile is specifically designed to avoid tearing or compressing the liner face unevenly, preserving insulation integrity across the duct interior. These pins are commonly driven through duct liner into the sheet metal substrate using a stud welder or pin spotter during ductwork fabrication in shops or on job sites.

Key Features

• Sloped CTC-series washer profile provides smooth transition at the quilting depression, reducing liner damage
• 1-inch washer diameter distributes holding force across the insulation face
• Pin diameter of 0.13 inches and length of 1.365 inches suit standard duct liner thicknesses
• Washer thickness of 0.015 to 0.017 inches keeps the fastener profile low against the liner surface
• Low-cost per-unit design supports high-volume duct fabrication workflows

Compatibility

Designed as an OEM-style weld pin fastener for use with duct liner insulation in standard sheet metal HVAC ductwork fabrication applications.

Installation Notes

These pins are installed using a capacitor-discharge stud welder or dedicated pin spotter tool; hand-driving is not the intended installation method. Ensure the duct panel surface is clean and free of coatings at the weld point to achieve a solid mechanical bond. Follow applicable SMACNA duct construction standards for pin spacing and liner attachment requirements. Verify the welder settings are appropriate for the pin diameter before beginning production runs.

Technical Specifications

• Series: CTC
• Pin Size: 1-1/2 inches
• Pin Diameter: 0.13 inches
• Pin Length: 1.365 inches
• Washer Diameter: 1 inch
• Washer Thickness: 0.015 to 0.017 inches

Standard Information

• Brand: DURO DYNE
• Manufacturer Part Number: 26232