Are you looking for a professional, yet hollow anchor and nut ? Are you in search of a sturdy, trustworthy tool that can be used to do multiple jobs at once? , ! Our product must meet your needs. This product is one of the for you. Features - Color: Silver -Material:Galvanized carbon steel, stainless steel - Size: 3.00X1.50X1.50cm/1.18X0.59X0.59in -Our petal nut expansion screws feature a nut and screw structure that can securely fix door anchors and prevent them from becoming loose. -The unique hollow metal cavity design provides greater expansion force, making the door anchor more secure. -Made of galvanized carbon steel and stainless steel, our expansion screws can be used for a long time without damage. -The installation process is simple and easy to understand, allowing you to quickly install the door anchor. -These screws are suitable for both home and commercial use, making them versatile and practical. Package list: 20 x sets of Hollow Door Anchors