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Our Premium Quality Zinc Yellow Dichromate Finished Hex Lock Nuts excel in diverse applications across industries such as automotive and machinery manufacturing, construction or maintenance work. Made from durable Grade 8 steel with a 1/2-13 UNC size, these insert lock nuts offer enhanced vibration resistance to ensure unwavering performance. The nylon insert inside ensures self-locking feature while reducing risk of thread damage. Equipped with strong zinc dichromate finish for added durability and corrosion resistance, our Hex Lock Nuts guarantee long-lasting results in demanding settings.