Nuts and washers are used to secure bolts and screws in assemblies. Learn about standard types and materials used in fastening applications.
DIN 6340 defines plain washers designed for high-strength bolted connections, especially in precision engineering and mechanical applications. These washers are thicker and larger in diameter compared to standard washers, providing better load distribution and increased resistance to deformation. DIN 6340 washers are commonly used in applications where high-strength bolts, preloaded joints, and heavy-duty fastening are … Read more
DIN 6796 specifies conical spring washers, also known as Belleville washers, designed for high preload and load-cycling applications. These washers provide elastic recovery to compensate for settling effects in bolted joints, ensuring long-term tension and vibration resistance. Commonly used in high-stress bolted connections, DIN 6796 washers help prevent loosening due to dynamic loads, thermal expansion, … Read more
DIN 985 specifies hexagonal lock nuts with a nylon insert, designed to provide self-locking functionality by increasing resistance to loosening due to vibrations and dynamic loads. These nuts are commonly used in mechanical, automotive, and industrial applications where a secure and reliable fastening is required. The nylon insert inside the nut deforms slightly when the … Read more
DIN 6915 is a German standard that specifies high-strength hex nuts with large widths across flats, primarily used in structural steel connections. These nuts are designed to be used with DIN 6914 high-strength bolts and DIN 6916 washers to form preloaded bolted assemblies in steel structures such as bridges, buildings, and industrial frameworks. Compared to … Read more
DIN 934 specifies hex nuts (also known as hexagon nuts), one of the most common types of nuts used in conjunction with bolts and screws for fastening. These nuts have a hexagonal shape, allowing for tightening with a wrench. DIN 934 is a widely used standard for general purpose hex nuts. Key Features of DIN … Read more
