Light steel keel with what screws fixed gypsum board
That is, depending on the general distance from the general self-tapping screw teeth to be larger. Fast teeth screws are generally used for wood, aluminum and other materials, in the role of power tools, you can quickly into the material inside their own. Because the fast tooth screws are mostly self-attack class, will not use the nut. Ordinary screw general mechanical screws, can support the nut.
??? Mechanical screws and self-tapping screws are very different in tooth pitch.
With fast wire.
Fast wire: cone tip, countersunk head, cross marks, double wire with boiled or galvanized surface treatment.
?????? Fast wire that is fast teeth screws, usually usually belong to self-attack class.
2.5cm self-tapping screw! Do not matter where you can use nails.
In foreign countries, taking into account the factors of the earthquake, heaven and earth keel and vertical keel can not be nailed.
