Regular fabric duct tape can replace hemp, which plumbers use to seal threaded pipe joints and faucets.
For this small strip you need to break into thin strands which are then twisted into flagella that can spin at screwing any plumbing fittings, and they will successfully play the role of a reliable sealing gasket.
Recommend to read
ADJUSTABLE PLIERS
the Owners of the most different techniques faced with a secret or castellated nuts. You can make a master key from an ordinary pair of pliers. For this purpose, the ends of the handles...
The spray can will still be useful
No matter how much humorists joke about repurposing items that have served their purpose, a DIY enthusiast's soul won't allow them to throw away something that could still be useful around...