Repair or replacement of faucet components, rather than replacement of the entire unit, saves money and resources. Zurn’s brass widespread flex-mount shank nut (Part no. 60145002) is made to fit AquaSpec® Z831 and Z867 model faucets. AquaSpec® faucets contain a unique, heavy-duty quarter-turn ceramic disc cartridge. The cartridge is so durable, you can expect it to last up to one million cycles. When you need a replacement part for repair or maintenance of a faucet, trust Zurn for genuine, reliable parts.