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Cor-Cap® Zinc Anode Cap, is a sacrificial zinc nut (Sac Nut or Zinc Nut) or galvanic
anode which is utilized for Cathodic Protection of flanges, mechanical fittings and gland/ring assemblies
installed on metallic (i.e., iron) joints for direct burial. To increase the amount of Cathodic Protection
and/or the design life of the installation, multiple Cor-Cap®'s can be installed on each bolt.
Cor-Cap®'s are not recommended for use on stainless steel nuts and bolts as this will accelerate
the rate of corrosion activity on the assemblies.
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Cor-Cap® Zinc Anode Caps are manufactured to meet ASTM Standard B418 (latest revision), Type II and can be purchased in several sizes, including but not limited to:
- UNC ½" Threaded, Zinc Anode Cap
- UNC ⅝" Threaded, Zinc Anode Cap
- UNC ¾" Threaded, Zinc Anode Cap
- UNC ⅞" Threaded, Zinc Anode Cap
- UNC 1" Threaded, Zinc Anode Cap
- UNC 1 ⅛" Threaded, Zinc Anode Cap
- UNC 1 ¼" Threaded, Zinc Anode Cap
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