We offers polyethylene nut covers to protect the exposed bolt and nut portion of the flange connection from the elements that cause corrosion. These covers are designed to fit tight against the nut therefore protecting from costly repairs or replacements from having to cut stud bolts off. These caps have been used from the protection of bridge and tunnel bolting, to the harsh environments of offshore platforms and refinery/chemical plant applications. By choosing to protect steel stud bolts and nuts early, the nut protector will help in costly bolt replacements in the future. This is preventative maintenance at its best!