Self-rescuing screws plus with a positive grooved slotted tallow head, especially suitable for guaranteeing a correct installation of cup hinges and mounting inserts. They are made of steel with an excellent quality nickel-plated finish, resistant to oxidation and corrosion. They are available in two options: with 4 mm diameter of the thread, head of 7.9 mm in diameter, and 15 mm in length, the packaging is 1000 units. For screws with 3.5 thread diameter, 6.5 diameter head, and 16 mm length, the packaging is made in 2000 units.