Paint scraping nut for fastening earth cable at earth bolt, has internal thread, which is formed complementary to external thread of earth bolt, where internal thread of paint scraping unit has thread anamoly

摘要

The paint scraping nut (1) has an internal thread, which is formed complementary to an external thread of an earth bolt (4). The internal thread of the paint scraping unit has a thread anamoly, which is so formed that it removes a paint layer coated on the external thread of the earth bolt by screwing on the paint scraping nut. The thread anomaly is formed in the type of minimized or maximized thread pitch height and an increased thread gauge height or deviated thread pitch angle. Independent claims are also included for the following: (1) an earth contact arrangement with a paint scraping nut (2) method for manufacturing paint scraping nut.