alfaflex fasteners Germany alfaflex model alfaflex price

alfaflex fastener mechanical parts, cylindrical threaded fasteners used with nuts. A type of fastener consisting of a head and a shank (a cylinder with external threads), which must be used with a nut to tightly connect two parts with through holes. This type of connection is called a bolted connection. If the nut is unscrewed from the bolt, its characteristics include a wide variety of specifications, different performance and uses, and a high degree of standardization, serialization, and generalization. Therefore, some people refer to this class of tight bolt fasteners that already have national standards as standard fasteners, or simply as standards.