These elastic nut blocks are special fasteners for European and national standard aluminum profiles, available in 30, 40 and 45 series. Adopting spring leaf or ball spring structure, they support rear mounting and side mounting, can be flexibly embedded and locked in T-slots without pre-positioning. With good elasticity, anti-loosening and anti-skid performance, they are widely used in aluminum profile frames, automation equipment, workbenches and industrial assembly. Complete specifications in stock with factory-direct supply, providing convenient and reliable fastening solutions for profile assembly.