Zinc Plated Steel Fire Door Thru-Bolts
Product Features
- Zinc Plated Steel Thru-Bolt Sleeve with Machine Screw
- Fits 1-3/4" to 2" Thick Doors
- Meets Requirements of NFPA 80 for Use on Fire Doors
- Use to Fill Holes in Wood or Steel Fire Doors to Protect Label Compliance
- Available in Boxes of Twenty