Screw hexagonal partial thread UNC ZB 5/8x3.1/4

Product detailed description

The UNC (Unified National Coarse) inch hex head screw with a partial thread measuring 5/8" x 3 1/4" is designed for use in applications requiring high strength and reliability according to American standards. This screw is made of steel and belongs to the Grade 5 strength class, which corresponds approximately to grade 8.8 according to European standards. The Grade 5 strength class guarantees high resistance to mechanical stress, which makes it suitable for use in demanding industrial applications.

The screw has a UNC type partial thread, which is characterized by a coarser thread pitch, which guarantees better resistance to loosening under vibration and dynamic loads. The screw length is 3 1/4 inches, which corresponds to approximately 83 mm, and the thread diameter is 5/8 inches. The screw head is hexagonal, which allows for easy assembly and disassembly using standard tools such as wrenches or sockets.

The surface treatment of the screw is made of white zinc plating, which provides protection against corrosion and increases resistance to external influences, thereby extending the life of the joint. The screw complies with the ASME B 18.2.1 standard and is comparable to the ISO 4014 standard, which ensures its compatibility and applicability in a wide range of applications where inch dimensions are preferred. This screw is ideal for structural and engineering applications where high strength and reliability of joints are required.