A41969: Hexagonal Head BoltHexagonal Head Bolt designed for securing components in heavy machinery and equipment. Measures 982. 98 mm (38. 7 in) in length with a 63. 50 mm (2 1 2 in) thread length, 25. 40 mm (1. 0 in) diameter, and UNC2A thread type for robust fastening. Features a 12. 50 mm (1 2 in) head height and 44. 50 mm (1 3 4 in) width across flats for enhanced grip and torque application. Made from high quality general steel for durability and strength in demanding