Span-Lock and Zip-Grip are designed to be used in conjunction so as to create a complete catenary system. APPLICATIONS SUITABLE AREAS OF USE INCLUDE, BUT ARE NOT LIMITED TO: Lightweight containment. Lightweight ductwork Lighting and lighting track. Lighting trunking. Busbar. Acoustic and radiant heat panels. Span-Lock Secure each end of the Span-Lock wire to a fixed anchor point using the Zip-Clip locking devices supplied. Pass the wire through the Zip-Clip device in the direction of the arrow. Pass through or around your required suspension and back through the device leaving 15 cm of wire protruding. Use a tensioning tool to apply tension to the wire. Always confirm engagement of the locking device on the wire by pushing the pin in the opposite direction to the arrows indicated. When fixing from purlins, always consult with purlin manufacturer to advise loading capabilities, in conjunction with using the Zip-Clip calculation service.