Fixing Cable Tray Bolts

Cable tray bolts should be installed using the correct truss-head bolts and serrated flange nuts, ensuring secure, vibration-resistant connections while following safety standards.Selecting the Right Bolts and NutsFor most cable tray systems, M6 truss-head bolts paired with serrated flange nuts are recommended. These provide a vibration-resistant and reliable hold and are available in various lengths such as 12mm, 16mm, or custom sizes depending on tray thickness and connector type . The bolts are typically fully threaded and made of BZP mild steel for durability . Some sets include a fixed washer to prevent the nut from falling during installation .Installation ProcedurePosition the Connector: Insert the straight or angle connector into the inside of the cable tray rail. For wider trays (400mm or more), a joint plate is required to prevent transverse bending; for trays up to 300mm, it is optional .Insert the Bolt: Pass the M6 truss-head bolt through the connector from the inner side of the tray to avoid damaging cables .Secure the Nut: Attach the serrated flange nut on the outer side of the tray. The serrations help prevent loosening due to vibration .Tighten Properly: Use a suitable screwdriver or socket driver to tighten the bolt until the connection is firm but avoid over-tightening, which could deform the tray or strip threads .Safety ConsiderationsOnly trained personnel should perform installation, as improper handling can cause serious injury or damage .Wear protective gloves to prevent cuts from tray edges .Ensure the tray system is designed according to expected load values and environmental conditions, including indoor/outdoor use and temperature ranges from ‒20 °C to 120 °C .Additional TipsFor rapid installation, pre-packaged bolt and nut sets are available in boxes of 100, which can speed up repetitive installations .Always check that the bolt length matches the tray and connector thickness to ensure a secure fit without protrusion.When routing cables, ensure bolts do not interfere with cable placement to prevent damage . By following these steps and using the correct hardware, cable tray bolts can be fixed securely, ensuring a stable, safe, and compliant cable management system.