For Two-piece, pancake-style zinc anode for rudders and trim tabs
Diameter: 2-13/16″
Thickness of One Half: 1/2″
Screw: Stainless Steel Socket Cap, 1/4″
Threads, 1-1/4″ Length
EMP Zinc anodes conform to Mil-Spec: MIL-A-18001K

also crosses with:
Canada Metals CMR02
Performance Metals R2813Z
GLM 26651
Technoseal R2
Camp R-02
Reliance MDR-2