Insuloid NX1 black polyamide PA66HS single hole mount cable P-clip, by HellermannTyton. max cable bundle diameter: 5mm fixing hole diameter : 4.2mm Download Hellerman NX1 datasheet: Status : (NOS) New Old Stock. Please note some slight variations in dimensions from current metric datasheet fire rating : UILV94 V2 Halogen free RoHS compliant: YES