SS 350 HD Bulldog Trailer Hitch Safety and Security System is designed for your heavy duty 2" and 2 5/16" Commercial Applications from 4500 lbs to 15,000 lbs. applications. The SS350BD Model Safety System includes Heavy Duty Steel Housing, Stainless Steel Cut Resistant/Freon Resistant keyed disc lock, 2 steel step washers for either size trailer ball shanks 1" or 1 1/4" and 2 Nylon lock nuts 1" and 1 1/4" for easier installation of Safety Sentry Model SS 350BD Make sure that your trailer ball is tightened to manufacturer's 100 ft lbs specs upon installation. MAKE SURE THAT COUPLER SIZE AND BALL SIZES ARE CORRECT FOR THIS APPLICATION

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