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Our premium grade 5/8-11, 1-3/8 flange diameter, 13/16 high, 1-1/16 across flat flange nut is ideal for use in various applications where a secure and durable connection is required. Its versatile design makes it suitable for a wide range of industries such as plumbing, automotive, and machinery manufacturing. The flange nut's 5/8-11 thread size ensures a precise fit while its 1-3/8 diameter and 13/16 height provide extra strength and stability. With a 1-1/16 across flat measurement, this flange nut is easy to install and can withstand high temperatures and pressures. Whether you're repairing or assembling equipment, our flange nut provides a reliable and robust connection.