Zinc Clearance Collars for Dogs - Secure & Stylish Pet Walking

The perfect zinc for that tight squeeze on your prop shaft! Sea Shield Marine Limited Clearance Collars provide easy size verification, are pressure die cast and conform to the highest Mil-Spec standards. Our Limited Clearance Collars install with just 2 deep-slotted stainless steel machine screws providing maximum torque, and are precision engineered for consistency.