Heavy Duty Hollow Wall Anchor Jack Nuts for Thin Walls,Expansion Screw Petal Nut,Insert Petal Design, 20 Pack(M4x25(1"))

Installation: First drill a hole suitable for the diameter of the anchor, push it in and adjust the screw in the fixing piece, you need to use a puller to flatten the collar against the back side of the wall.If you don't have the puller tool you can hold the collar with a pair of vice grips while you turn the screw and it will seat just fine. prevent rotation.

• Package includes:20pcs metal hollow wall anchors,The reserved hole diameter of M4 model is 8-10MM (0.3 "-0.46"),It can be used for doors, windows, iron pipes, bathroom accessories, etc..
• High - Quality Material: Made of high-quality carbon steel, these jack nuts are corrosion - resistant and durable. The zinc plating provides an extra layer of protection, extending the lifespan of the nuts and making them suitable for both indoor and outdoor use.
• Unique Insert Petal Design: The insert petal design allows for a more secure and stable installation. When inserted into the wall, the petals expand to grip the wall tightly, providing strong support for your fixtures.
• Easy Installation: All you need for installation are a wrenched or plier, and a screwdriver. First, hold the rivet nut so it does not spin after you insert it into the hole. Then, insert the anchor into the hole. Finally, use a screwdriver to screw in the bolt, and the petals will expand to hold the anchor firmly in place.As you tighten the screw/bolt, the nut will crimp and hold in place. Don't over-tighten or you may strip the thread.
• Wide Range of Applications: These jack nuts are suitable for a variety of applications, including plastic, polywood, hollow wall, iron skin, and more, making them a versatile addition to any DIY or construction project.