Nut Collar A (round) Categories: Accessories, Accessories - Collar Description DescriptionUsed when the PN needle needs to be stably fastened.SpecificationRemarkAL (Electroless Nickel Plating)DescriptionUsed when the PN needle needs to be stably fastened Related products Inlet Adapter (Cartridge type) Read more Prev PostInlet Adapter (Cartridge type) Next PostPressure Sensor