The bolt ball is an indispensable core node component in spatial grid structures. It features a spherical shape with multiple precision-machined threaded holes distributed across its surface, designed to connect members from various directions. In steel structure engineering, bolt ball nodes connect steel tubular members to the sphere using high-strength bolts, forming a stable spatial load-bearing system. Its greatest advantage lies in its ability to achieve multi-angle member intersections, accommodating a wide range of complex architectural forms. It is particularly well-suited for long-span spatial structures such as gymnasiums, convention and exhibition centers, airport terminals, and industrial plants.
