Easy Installation: Threaded insert design of the petal nuts makes them easy to install, even in thin or soft walls, without the need for tools or equipment Petal Shape Metal Nut: High quality jack nuts made of high quality carbon steel, its rust and resistance has been enhanced by galvanizing technology for longer use,can resist the and rust in marine environments. Construction: Petal nuts are made of quality stainless steel material, which is built to last and can withstand the rigors of frequent use, expanded head of the nut is larger and can be securely fastened to the plate, it has good load-bearing capacity. Secure Mounting: Expansion anchors can provide a secure and reliable mounting solution, ensuring that your fixtures and fittings stay firmly in place Versatility: The petal nuts can be used with a variety of materials, including plastic, , hollow wall, iron skin, and more, making them a versatile addition to any diy or construction project, that can meet all your ., Manufacturer: CTRLZS