-Secures lightning protection conductors and prevents displacement -Mechanically secured with screws or nailsPart Number PC008A Article Number 711370 Material Aluminum Outer Diameter (OD) 7 mm Depth (D) 10 mm Width (W) 28 mm Hole Size (HS) 5 mm Certifications Qualifoudre Standard Packaging Quantity 50 pc UPC 78285687991 EAN-13 8711893021066