10 Pcs 4.8x19mm Self-Tapping Screws Captive Loose Washer 8mm Hex for Head Black

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. 10 Pcs 4.8x19mm Self-Tapping Screws Captive Loose Washer 8mm Hex for Head Black Features: 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 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 w