Master Lock 45mm Magnum with 64mm Extra Long Shackle Padlock $16.99 + Delivery ($0 C&C/In-Store/OnePass) @ Bunnings

Spotted at Bunnings locally, but there seems to be plenty of stock Australia-wide

Ticket underneath showed $36.99 for the single.
Twin-pack is also on sale for $38.55 if you want identical keys.

Quad pack is exuberant at $93.95, but that’s what you pay for to have four identically keyed locks?