Screw ISO 7379-8-M6-90 Z041533

Fitted screw with collar – reliable fastening in many applications

ISO 7379-8-M6-90 screw is a structural element characterized by high strength and precision. Made of black oxidized steel, class 12.9 (tensile strength 1200 N/m2), it ensures durable and safe connections in various applications. The cylindrical part with diameter d1 has been ground, which guarantees accurate fit and mounting stability.

Design and application

Fitted screws with collars, such as this model, are widely used in mechanical engineering, precision devices and in general machine construction. Their design allows for effective load transfer and ensures connection stability. The oxidized surface increases corrosion resistance, which is particularly important in environments exposed to moisture or atmospheric factors. It is worth remembering that the tightening torque of this screw is limited by the resistance surface of the head and the undercutting between diameters d1, d2 and d3 – it is not determined solely by the material strength class.

The screw is characterized by the ISO 7379-8 standard, has a thread size of M6 and a length of 90 mm (l1 +0.25). The diameter of the cylindrical part (d1) is 8 mm, and the strength class is 12.9. It is made of black oxidized steel, and diameter d2 is M6 and d3 is 13 mm. The collar height (l2) is 10 mm, the conical part height (l3) is 5.5 mm, and the flat wrench size (A/F) is 4 mm. The weight of the screw is 0.042 kg.

Screws from the ISO 7379 series are an economical solution for a wide range of structural applications. Their versatility and availability in various sizes make them readily chosen by both professionals and end users. Precise workmanship and high-quality material guarantee the reliability and durability of connections.