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How to avoid breaking obsolete screws

2020-12-28

Driving three-inch lag screws to install hanging garage storage shelves often frustrates many people. They are often broken.
Ceiling brackets for ceiling-mounted garage storage racks require 2-inch stud insertion. Most of these shelves include 3-inch lag screws because they need to pass through the width of the drywall and mounting bracket.
The most important thing to avoid damaging the screws is to always pre-drill the holes. Use a 3/16 inch drill bit and drill down to the full length of the screw. When you only drill halfway, you will encounter a lot of resistance when driving the screw. I heard that some people have successfully drilled a hole in it with a 15/16" drill, but only to the smooth area of ​​the lag screw. Knowing that wood is a natural product, you are likely to encounter a knot inside the wood. These areas usually do not hold the screws well, so you may be forced to move the mounting point.
Second, use an impact driver to drive the screw. It is difficult to accomplish this job with a socket wrench. A cordless electric drill with a drill bit for the sleeve will do the job. However, by far the simplest solution is to use the influence driver. I found that I need to use both hands and stand upright behind the drill in order to successfully drive them with the rechargeable drill. However, if you use an impact driver, you can only install the screw with one hand, without having to align yourself with the screw. This is especially convenient if I am on a ladder and need to reach an anchor point.
Another common problem is usually that people over-tighten lag screws. Do not over tighten the hardware. Once the top of the lag screw is flat against the dry wall, you can shake your head, and you may twist the head and jam the thread in the stud. This may cause problems when attaching the ceiling mounting bracket, because you may mount over the studs, which means you will not be able to just slide the bracket over a point to make a new hole. Tighten the screws until the head touches the ceiling bracket. No need to tighten the screws anymore.
Applying soap or wax to the thread can make the screw drive easier. If possible, it is best to use candle wax, because over time, soap can cause wire rust.
If you are going to use lower quality screws, please consider visiting din571.com for higher quality screws. The grade and material of the head screw are marked on the head. No mark indicates the lowest grade 2 and has the lowest tensile strength. Three radial lines indicate Grade 5, which is a medium carbon steel that has been quenched and tempered. This grade should turn appropriately and have no regular breaks. The final and strongest grade of steel screws has six radial marks, so it is grade 8.
Stainless steel lag screws will not have these standard markings on them, but have a tensile strength of about grade 5, although they may bend more easily-bend later. There may be something printed on the stainless steel head, so you will not confuse it with level 2. Stainless steel is also non-magnetic.

 

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