The optimized geometry minimizes setting energy and allows for use in extremely narrow spaces. This allows for user-friendly installation. The three-part expansion sleeve creates even load distribution, thus allowing small edge and axial spacing. Thus the SLM is extremely flexible. The metric internal thread allows to use standard screws or threaded rods for the ideal adaptation to suit the intended use. The red plastic cap protects against soiling and thus ensures free-running of the thread. Zinc version with TE screw in steel 8.8. Building materials Approved for, concrete C20/25 to C50/60, non-cracked. Also suitable for, concrete C12/15 natural stone with dense structure.