Introduction to drilling screws.

Drilling screw is a new invention in recent years. Screw is a common term for fasteners and a daily mantra.

The tail of the drilling screw is in the shape of drilling tail or sharp tail, without auxiliary processing, can be directly drilled, tapped and locked on the setting material and basic material, greatly saving construction time. Compared with ordinary screws, its toughness and maintenance force is high, and it will not be loose after a long time after combination, and the operation is simple to use safe drilling and tapping once.

Drilling screw

Use: It is a kind of screw, mainly used in the steel structure of the color steel tile fixed can also be used for simple construction of thin plate fixed. It cannot be used for metal-metal bonding. Material and model

Materials are iron, stainless steel two kinds of stainless steel is divided into a variety of materials.

Models are: Φ4.2/ Φ4.8/ Φ5.5/ Φ6.3mm, the specific length can be agreed upon according to requirements.

According to different drilling tail can be divided into:

Round head rice/cross/plum, countersunk head (flat head)/rice/cross/plum, hexagonal washer, round head Washer (large flat head), horn first