Metal Screws & Locking Washers – BlueTex Insulation
Round Speed Fixed Washers for Insulation Pins - China Speed Fixed Washers, Insulation Pins&Washers | Made-in-China.com
Insulation Washers – Polyplas
Hotop Perforated Insulation Pins 2-1/2 Inch, 1.5 Inch Self Locking Washers Round, 7/8 Inch Aluminum Insulation Dome Cap Washers for Wall and Ceiling (150 Pieces): Amazon.com: Industrial & Scientific
Phenolic Insulating Washers - Industrial Gaskets
Wind-lock ULP-302 Plates, 1-1/4in Plastic Washer for Rigid Insulation, 250/pk
1-7/8 inch Plastic Washers for Insulation Board (500)
100pcs Perforated Insulation Pins, 2-1/2 Inch Insulating Nails 1-1/2 Inch Self Locking Washers, 7/8 Inch Dome Cap Washers, Anti-aging Aluminum Insulation Fasteners for Wall and Ceiling - Walmart.com
ADO Products 1.5 in Round Self-Locking Insulation Anchors IS014 - The Home Depot