CONSTRUCTION FIXINGS Safe anchoring of seats

Football stadiums and sports arenas are places of great emotions and fascinating moments. To make visits a special experience, stadiums must be designed under the aspects of safety and comfort.

can be screwed into concrete without dowels. HECO explains that the MULTI-MONTI enables a positive threaded anchorage that can be subjected to loads immediately and only requires a few simple steps to install. Its simple principle of action avoids hidden mounting errors – guaranteeing maximum safety, as well as good transfer of high loads.

T (mm)

10 x 85/10 SW 16 10 x 95/20 SW 16 12 x 100/10 SW 18 12 x 120/30 SW 18

Determining the right anchor Essential to the safety of the anchorage are the careful calculation of the seats and the selection of the right anchor. If the geometrical details and the loads acting on the seats are known, the measurement of the MULTI-MONTI screw anchors can take place with the HCS 3.0 calculation software. The printout included in the delivery contains not only measurement results, but also mounting diagrams and mounting details of the selected screw anchor. The selection of the right screw anchor can also be derived from the load classes and mounting part thicknesses (clamping strengths) in the technical documentation. HECO says that it is important to use the MULTI-MONTI in stainless steel A4 design, in order to avoid damage from corrosion when used outdoors.

Dimension D x L

Drive Drill

nominal diameter d0

(mm) 8 8

10 10

Drilling depth h1

(mm) 90 90

100 100

Anchorage depth hnom

(mm) 75 75 90 90

Clamping strength tfix

(mm) 10 20 10 30

Highest allowed tensile load in cracked concrete C20/25

(kN) 3.7 3.7 4.9 4.9

Table 1: MULTI-MONTI screw anchor with hexagon head (MMS-S) made of stainless steel A4

INDEX launches the new TEX-A2 chipboard screw

INDEX Fixing Systems, a manufacturer and industrial supplier of fixing systems, has launched the new TEX-A2 – an A2 stainless steel high performance chipboard screw specifically designed for wooden terraces and other outdoor timber structures.

W 66

ith the stainless steel version, the Spanish company broadens its offer of high performance chipboard screws, which already contained the zinc plated TEXZ and the yellow zinc plated TEXZB versions. INDEX explains that the technical characteristics of the TEX chipboard screw

make it the perfect solution for structural timber applications. Its high pitch allows a faster than usual drive, its helicoidally expeller throws the shaving out of the hole during the drilling, and its milling facilitates the installation of the screw by breaking the fibre of hard types of wood, while its serrated thread GSWR – with irregular dentations on the first coils – grinds them and reduces the installation torque. In addition, the TEX has ribs in the lower part of the head, which generate a direct countersink during the installation of the screw. INDEX points out that the rust and corrosion resistant TEX-A2 is even more versatile, and

ensures optimal performance in all exterior wooden structures such as decks and terraces. www.indexfix.com

he MULTI-MONTI® screw anchor from HECO Schrauben GmbH & Co KG has a

European Technical Approval (ETA – 05/0011) that offers advantages that have proven themselves in the fixation of seats on stadium stands. The MULTI-MONTI is a concrete screw with a patented special thread that

Fastener + Fixing Magazine • Issue 88 July 2014