Abstract: A temporary safety line system which is employed in protecting construction workers on the job site. The system is adapted to be removably interconnected to the surface of a structural beam, such as an I-beam. The system includes a series of intermediate posts assemblies and end posts assemblies which support a tensioned safety line. The safety line, in turn, is secured at its ends to anchor post assemblies. Each of the post assemblies is removably secured to a stud that is welded to the surface of a structural beam. These studs perform two functions. First, the studs allow individual post assemblies to be temporarily and positively secured to the underlying structural beam. Second, the studs function in binding poured concrete to the structural beam once the safety line system is removed.