Perforated Base Insulation Pins and washers are used to fasten heavier insulation materials to surfaces that self adhesive insulation hangers can’t work to. Each insulation stick pin has 44 holes on the perforated base. The 44 holes are used to grab the adhesive or allow a screw/nail to hold the base in place. Once the insulation material is pierced onto the pin, a self locking washer can be installed to hold the insulation in place.
Building insulation,Duct Insulation