1/2" Thick 5" x 3.5" D-Pipe Internal Mounting Pad | 3 Tapped Holes | D5 Profile | Marine Grade 6061-T6

This versatile, internal screw pad is engineered for securely mounting your D-4 size aluminum D-pipe from within, providing a flush and clean exterior finish for attaching to boat T-tops, tuna towers, fiberglass pedestals / gunwales, or custom seating. This geometry is time-tested and evolved through a multi-year process in heavy production environments within our own shop, making it incredibly robust. It's also versatile enough to use in a wide range of installation angles, and is very easy to trim to achieve precise positioning. Crafted from heavy-duty 1/2" thick 6061 series aluminum, this pad ensures robust internal support and exceptional corrosion resistance. Key Specs & Features • Precision Manufacturing: Cold cut using water jet technology and then CNC machined through a 100% digital CAD/CAM process for unparalleled accuracy and a flawless finish. • Optimal Compatibility: Exclusively designed for D-4 size D-profile aluminum pipes. • Internal Mounting: Provides a discreet and strong internal fastening solution. • Robust Dimensions: Minimum structural thickness throughout of 1/2" for substantial internal support. • Heavy-Duty Construction: Made from durable 1/2" thick 6061 series aluminum. • Threading: Features 1/2" 13 UNC threaded holes, ideal for stainless steel screws. • Easy Customization: Simple to trim, allowing replication of most common installation angles.