Retractable screws for pool tarpaulins. They have a quick, effective and easy to install anchoring system. Everything is unified: you won't need plugs for the summer. Thanks to these retractable screws, the assembly and disassembly of your winter cover will be very easy. To install it, we lift the central bolt and hook the tensioner. During the summer, we remove the tensioner from the cover and the bolt drops down and closes with its conical anti-pinch head. 100% stainless steel: Central bolt made of high quality stainless steel. They are specially designed for users who assemble and disassemble the winter tarpaulin by themselves.
The dowel diameter can be 10 mm with a 13 mm locking head and a total height of the dowel including the inner bolt of 6 cm. Or you can choose the option with a 16 mm locking head.