PATIKIL 100pcs Perforated Insulation Pins 2-1/2-Inch 1.5-Inch Self Locking Washers Insulation Stick Pins Aluminum Insulation Hangers Round for Foam Board Wall Floor Ceiling

These self-locking washers are made of low carbon steel with galvanized coating and aluminum dome caps, offering good insulation, strong bearing capacity, durability, and resistance to rust and deformation.

The perforated base surface of the insulation pins allows adhesives or gypsum to dry quickly and enhances adhesiveness for a secure hold.

Easy to install: clean and dry the surface, fix the base with adhesive, pierce the insulation panel onto the nail, secure with the self-locking washer, bend or cut the spindle, and cover with the dome cap for a finished look.

These insulation pins can be fixed by soldering, gluing, or self-adhesion, making them compatible with various surfaces like concrete, wood, and metal for versatile use.

Widely used for anchoring HVAC duct insulation, house wall insulation, and installing fiberglass mats, foam boards, and wooden panels.