HEXAGON BOLTS

DIN 931 refers to a specific standard for hexagon head bolts with partial thread and various lengths. The DIN 931 standard comes from the Deutsches Institute Fur Normung, which is the German Institute for Standardization. This standard is widely recognized in the industry as a benchmark for the design and manufacturing of hexagon head bolts. Govt. of India recognized DIN 931 as ISO 4014. This International Standard Owned to a complete group of product standards evolved in ISO on external Hexagonal Drive fasteners. One of the key characteristics of DIN 931 Bolts is their hexagonal head, which is designed for easy tightening and loosening using a wrench or spanner. The partial thread on these bolts enables them to be used in a variety of applications where a secure fastening is required such as in construction, machinery, and automotive engineering. The dimensions and specifications outlined in the DIN 931 standard ensure that these bolts meet specific quality and performance criteria. This includes requirements for materials used; the thread dimensions surface finish, and mechanical properties. By adhering to this standard, manufacturers and users can be confident in the consistency and reliability of the bolts produced. In terms of materials, DIN 931 bolts are commonly made from carbon steel, stainless steel, and sometimes alloy steel, depending on the application and environmental factors. The standard specifies the mechanical properties and the appropriate material grades to ensure that the bolts can withstand the intended loads and conditions. The dimensional requirements cover the thread length, pitch, and diameter as well as the length of the shank under the head. These parameters are crucial to ensuring that the bolts can be properly installed and torque to achieve the desired clamping force without compromising their structural integrity. Surface finish requirements are also outlined in the standards to ensure that the bolts have the necessary corrosion resistance and appearance for their intended use. This can include coatings such as zinc plating, hot-dip galvanizing, or other types of surface treatments depending on the material and the environmental conditions to of the bolts will be exposed. DIN 931 bolts are available in a range of diameters and lengths to accommodate different application requirements. The bolts are used in Grades 5, 8, 10, and 12 sizes. A DIN 931 Hexagon head bolts with shank are available in sizes from M3 to M64.