DIN 931 hex bolt designed for high strength fastening This bolt is made from metric class 10.9 steel, delivering high tensile strength for demanding assemblies. It features a coarse thread that is partially threaded, with 40 mm of thread length, and is manufactured to ASME B18.2.1 dimensions. The combination of DIN 931 form and ASME B18.2.1 compatibility ensures reliable interchangeability with standard nuts and washers. Key benefits and why you need this bolt - Strong, dependable performance: metric class 10.9 steel provides high strength for critical joints and load bearing applications. - Easy and fast installation: coarse thread enables quicker engagement and robust clamping in common materials. - Targeted thread design: partially threaded section improves load distribution and shear resistance where it matters most. - Standardized compatibility: conforms to DIN 931 geometry and ASME B18.2.1 dimensions for reliable mating with standard nuts, washers, and components. - Clear specification: with 40 mm of thread length, this bolt fits joints requiring a defined threaded portion without compromising core strength. Specifications at a glance - Standard: DIN 931 - Material: Metric class 10.9 steel - Thread: Coarse thread, partially threaded - Thread length: 40 mm - Dimensional compliance: Manufactured to ASME B18.2.1 dimensions Practical applications - Automotive and engine mounting: secures brackets and components in high load areas where strong, reliable fasteners are required. - Industrial machinery assemblies: joins frames, supports, and moving parts where precise, durable torque is essential. - Construction equipment maintenance: fastens structural connections and equipment housings subject to vibration and heavy use. How to use and ensure proper performance - Pair with compatible nuts and washers that conform to ASME B18.2.1 standards. - Verify that the thread length of 40 mm matches the joint design and the engaged thread depth. - Follow standard torque guidelines appropriate to metric class 10.9 bolts and the mating components to achieve reliable clamping without over-tightening. This product provides a consistent, high strength fastening option aligned with DIN 931 and ASME B18.2.1 standards, suitable for demanding mechanical and structural assemblies.