• Set of 5 hexagonal cap nuts M12 manufactured according to DIN 1587. • A2-070 stainless steel material (V2A/304) corrosion resistant, suitable for indoor and outdoor use in humid environments. • Design with a closed dome-shaped structure that covers and protects the end of screws, bolts or threaded rods. • Increases assembly safety and prevents risks of direct contact with exposed threads. • Installation compatible with 19 mm wrench or socket for elements with 12 mm diameter.