Nuts square, hexagonal and Special , of light and heavy, are manufactured with any type of thread, for any type of product such as bolts, bolts, fittings, etc.
SQUARE AND Ferrocarrilera
HEXAGONAL
HEXAGON FLANGE
NYLON INSERTS
55 35 44 35 35 55 35 44 35 42 55 55 77 96 33