M5 nut rivets are convenient for mounting electrical accessories and relay accessories. Made of high strength steel that wont cause corrosion even when applied to a steel body. 5 x 100 pieces per bag (Specifications) Thread pitch: 0.2 x 0.03 inches (5 x 0.8 mm); Suitable crimping thickness: 0.06 - 0.1 inches (1.5 - 2.5 mm); Bottom hole diameter: 0.3 inches (7.1 mm); Quantity: 500 pieces