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A&K Bonded Insulated Joints are manufactured in accordance with AREMA specifications. Typical joint lengths range from 13’ to 40’, and we can supply longer custom lengths to meet your requirements as needed. We assemble our bonded insulated joints with both new and relay rail in a variety of sections. Other options include standard fiberglass or high strength Kevlar insulation, 6 hole 36” or 8 hole 48” bonded insulated joint bars and hex bolts with hex nuts or huck pins.