Do not use self drilling screws in blind holes holes that do not pass through the material.
How do sheet metal screws work.
Their heads can be either phillips head or slotted head.
A self drilling screw has a chisel tip similar to a drill bit.
The oval head types of sheet metal screws resemble the regular flat head screws but have slight variation.
Regardless of the material the driving point needs to be larger than the depth of the material being driven into.
The metal thickness that you are drilling into needs to be thinner than the length of the drilling point of the screw.
It s helpful to use self tapping screws for products that you need to maintain regularly such as air conditioning units or canopies where you need to dissemble and reassemble the item along the same threads.
If you re attempting to attach sheet metal you should choose metal screws.
Use this type of screw to fasten pieces of metal together.
A number 14 size sheet metal screws teks screws wood screws 2.
Sheet metal screws form threads in the metal as they are installed.
In a single time saving operation these screws drill tap and fasten.
You need a socket hex head screwdriver to fasten wood to metal with this type of screw.
Self tapping screws drill their own little tunnels by cutting precise threads when they are screwed into wood plastic or metal.
A number 6 size sheet metal screws teks screws drywall screws particle board screws wood screws u drive screws 8.
If the screw threads contact the surface of the metal before the hole is bored the.
Pointed panhead screws are coarse threaded.
Sheet metal screws were originally designed for metal like for use in a b vent pipe but can be used for a number of other applications too they can be used with plastics rubber or plywood.
Popular mechanics recommends drilling at maximum speed and using a screw that is slightly longer.
A number 8 size sheet metal screws teks screws drywall screws particle board screws wood screws u drive screws 14.
This allows you to skip pre drilling a hole into thinner gauges of sheet metal.
These rivets feature more girdles on top which help in providing a more finished appearance.
You can also drill this screw into the metal and wood using a socket bit on your drill.
They are available in gauges from 4 to 14 and lengths from 1 4 inch to 2 inches.
The shaft diameters of both wood screws and sheet metal screws are not stated in inches but rather by industry numeric gauge sizes ranging from nos.
They are easier to drive into metal and will offer a greater level of strength and security.
Sheet metal screws are designed to fasten metal sheets to other items.
These screws are also available in stainless steel and also in zinc plated.
In short wood screws are designed to be driven into wood materials while metal screws are designed to be driven into metal materials hence the names.
There are several different types of sheet metal screws.
