Profile: Little Giant Fittings Co., Inc. is a manufacturer of corrosion resistant pipeline repair products. We specialize in underground pipeline repair fittings. Our products include bolted couplings, fittings & valves, oil field tank fittings and gaskets. Our products are made of filament wound fiberglass. Our bolted couplings are non-corrosive and provide effective way to connect sections of pipe. Our brands include Little Giantâ,˘, Permajoinâ,˘ and Jimscoâ,˘.