Functioning - The MS brass fixing is suitable for pre-positioned and push-through installation. - Turning in the metric screw causes the front part of the brass fixing to expand, thus securely anchoring it in the substrate. - Calculating screw length for flush fixing installation: Fixing length + fixture thickness = min. screw length. - Suitable for metric screws and threaded bolts. - The brass fixing may have to be expanded slightly before installation by turning in the threaded screw.