Our Insulation Lacing Hooks are a family of specialized fasteners designed for the fabrication of removable and reusable insulation blankets, jackets, and mattresses. They work as part of a lacing system: a lacing wire passes through the insulation layers, engages with the hook, and is tensioned and tied against a mating washer on the opposite side. This creates a firm, snug fit that holds the insulation securely against equipment or duct surfaces.