Sprinkler Loop Hanger – With Knurled Nut – 330 Sprinkler Loop Hanger, With Knurled Nut Advantages/Benefits Approved for the fixing of sprinkler systems by FM and UL certifications. Designed for suspending insulated pipe (with shield) or non-insulated pipe allowing for vertical adjustment. One-piece design allows quick and easy installation of sprinkler pipes. Ideal for suspension using threaded pins and threaded rods. Simple height adjustment using the knurled nut. Technical Data Material: Steel 1.0332 acc. to DIN EN 10111 Zinc plating: Pre-galvanised acc. to DIN EN 10327 Connection: Knurled nut