Introducing the new ProZ SD, designed to fit securely and ensure a weather tight seal. The design of the washer head reduces overdriving and can never red rust with the zinc aluminum alloy cap. ProZ SD provides a strong cap that withstands the toughest installation conditions and is compatible with all panel finishes. No red rust - zinc aluminum alloy cap. We are a 100% American owned and operated company!We are proudly family owned and operated for over 25 years. If you have any questions about this item, or about any other items that we currently have available, please dont hesitate to ask! The item "Pro Z SD Zinc Aluminum Alloy Cap 12 X 1 1/4 Self Drilling Metal Roofing Screws" is in sale since Tuesday, February 13, 2018. This item is in the category "Business & Industrial\Construction\Building Materials & Supplies\Fasteners & Connectors". The seller is "parkssalvageandsurplus" and is located in Ravenel, South Carolina. This item can be shipped to United States.