M5.5 x 25mm Phillips Driver Countersunk Head Self Drilling Screws Bolts 20 Pcs

Description:

• Self-Drilling Screws, also known as Tek screws, eliminate the need for a pre-drilled hole.
• The length of the drill point determines the material thickness which the screw can reliably penetrate.
• When selecting a self-drilling screw design, it is important to consider the material thickness and type of materials to be joined.
• It is wood drill tail screw, mainly used in steel structure Caigang watt fixed can also be used for fixing the simple construction of the sheet material.
• It can not be used in combination with metal and metal.
• Teks self-tapping screws provide secure fastening with strong holding power without the need to pre-drill.
• Engineered drill-point and flute remove material efficiently and properly size the hole for threads.