The 40 mm K5UD stainless steel padlock with a 20 mm shackle offers outstanding security and durability. Its stainless steel construction makes it highly corrosion-resistant, making it ideal for marine environments. The 20 mm shackle is well suited to securing hatches, chests, and even small trailers. It comes with five keys, so you’ll have spares if one is lost. Security at sea is essential, and this padlock is a smart choice for protecting what matters most on your voyages.