Use a hammer to carefully tap the anchor into the hole until the collar of the anchor is flush with the wall surface. Don't drive the collar beneath the surface of the wall. For some types you may need to fold down the flanges to install the anchor.
Once you've drilled the hole, insert the anchor into the hole. Tap the anchor lightly with a hammer until it is flush with the wall.
For concrete anchors, the hole should be drilled using a carbide tipped drill bit of the same diameter as the anchor. The hole should be at minimum a 1/2" deeper than the length of the anchor for optimal use.
Insert the wedge anchor through the fixture's hole and into the hole in the base material. This should be a very tight fit- use a hammer to complete the installation until the nut and washer are tight against the fixture. It is important that the threads go below the surface of either the base material or the fixture.
You can still install objects on walls — even if there's no stud available. You just need to use drywall anchors. Drywall anchors live up to their namesake by anchoring into drywall panels. You can push them into a pilot hole.
While drywall alone can hold about 1.6 pounds to 2 pounds per square foot, mounting an object to the stud with the proper hardware allows the drywall to support up to 100 pounds.
Regular Wall Plugs
Regular plasterboard wall plugs come in various sizes for different types of screws. They are designed to be hammered into a pre-drilled hole, securing them in the wall. They can then be screwed into, which expands the wall plug, further securing it in place.
Drywall screws typically have a bugle-shaped head that sits flush with the surface of the drywall and helps to prevent tearing or damage to the surface.
Use a hammer to carefully tap the anchor into the hole until the collar of the anchor is flush with the wall surface. Don't drive the collar beneath the surface of the wall. For some types you may need to fold down the flanges to install the anchor.
It's probably not a good idea to hammer it in. A screw works like a wedge. If you hammer it in you will more than likely strip out the hole somewhat and reduce the strength of the join or crack the wood.
Screws or nails popping out of the wall indicate that the drywall is not properly secured to the frame in that area. Simply screwing or nailing the fasteners back into the wall won't fix the problem. Instead, you need to insert new fasteners in an undamaged spot near the popped fastener to secure the drywall.
You may need to tap the anchor with a hammer to drive it completely into the hole. The anchor should fit snugly inside the pilot hole.
Wedge anchors are considered one of the best concrete screws due to their exceptional strength. They consist of a threaded bolt with a wedge-shaped mechanism. As you tighten the nut, the wedge expands the anchor body, creating immense holding power.
The diameter of the hole you drill should be slightly smaller than the diameter of the screw. So, for example, if you're using a 3.5 mm screw, use a drill bit with a diameter of 3 mm. If you're using wall anchors as well as screws, the drill bit and anchors should have the same diameter.
The diameter of the bit used to drill a hole for the 3/4” drop-in anchor is 1”. The bit must be carbide tipped and meet ANSI standards to ensure proper hole tolerance.