A six-sided internally threaded left hand fastener with a fine thread, which is only two thirds the thickness of a full form nut. Jam nuts are tightened against the work surface and a finished or heavy nut is generally tightened against the jam nut to keep it from loosening.
25 PER BOX / PRICE PER BOX
You can use c4-tab3-global to give your customers more information on shipping
