How to use Self Drilling Screw

select a suitable self drilling screw whose length and diameter match the material to be connected, so as to form a suitable thread on the material.

use a drilling machine or manual drill bit to drill a hole at the desired position. for thin sheet materials, directly use the self drilling screw drill bit to drill a hole, and pay attention to the moderate speed of rotation to avoid damaging the material.

place the self drilling screw with the head down on the drilling position, and slowly rotate the self drilling screw while pressing it down with force to insert it into the drilled hole.

when the self drilling screw enters the material and begins to rotate, slowly increase the rotation speed and torque until it can form a correct thread in the material and tighten it on its own.

ensure that the self drilling screw is fully inserted and use a wrench to tighten it to ensure a strong and reliable connection.

it is worth noting that when using self drilling screw, it is advisable to test whether the tooth profile of the self drilling screw is suitable for the drilled material in advance to ensure that the screw does not damage the material or cause unreliable connection during insertion and tightening. also, pay attention to safety when using self drilling screw to avoid contact with rotating blades with fingers.