DIN 961 / ISO 8676 / EN 28676, HEXAGON HEAD SCREWS, Technical Specification and Weight Chart of DIN 961 hexagon head screw metric fine pitch thread, Din 961 / ISO 8676 / EN 28676. DIN 961 is designed for hexagon head bolts with a finer thread pitch compared to standard bolts, providing specific mechanical and dimensional characteristics. These bolts are commonly used in applications where a fine pitch thread is required for precise adjustments or where the fastener needs to provide high resistance to loosening due to vibration or dynamic loading.

As with any standard, it's crucial to refer to the specific version of DIN 961 to ensure accurate and up-to-date information. Engineers and manufacturers often adhere to these standards to ensure consistency and compatibility in various industries where hexagon head bolts with fine pitch threads are used.