SUPERLOK Tube Fittings are produced by strict management of materials, high precision design, and the best machining technolo ... gies. SUPERLOK Tube Fittings tighten easily and are leak-free under shock, vibration and temperature cycling. The use of SUPERLOK tube fittings results in additional productivity and cost reduction for the end-user. The best interior surface finish in the industry reduces particle entrapment, potential contamination and improves the flow of fluids and gases. read more