The DIN 931 Hex Head Bolt is a type of fastener that features a hexagonal head and is designed to be tightened or loosened using a wrench or socket. This bolt is commonly used in various applications where a secure and reliable connection is required. The DIN 931 standard ensures that the bolt meets specific dimensions and performance requirements, making it a trusted choice for many industries. With its hex head design, it provides a larger contact surface area, allowing for better torque transmission and reducing the risk of slippage during tightening or loosening.