Drywall screw in the appearance of the maximum feature is horn head modelling, points double fine teeth drywall screw and single coarse thread drywall screw, both the biggest different depend on the former thread is double thread, applicable to plasterboard and thickness of not more than 0.8 mm the connection between the metal keel, while the latter applies to plasterboard and rough ground connection. Drywall screw series is the whole fastener product is the most important one of the categories. This product is mainly used for all kinds of gypsum board, light partition wall and ceiling series of installation.
Drywall self drilling screw Used for gypsum board and thickness of not more than 2.3 mm the connection between the metal keel, black phosphating and yellow zinc plating optional. The applicable range and the purchase price is basically the same. A slightly different, black phosphating has certain lubrication, the attack rate (scored specified thickness steel plate speed, is a kind of quality assessment index) is slightly better; And yellow zinc in rust prevention effect slightly better, and the product nature shallow, not easy in coatings film color after adornment.
Our company exports the biggest on the dry wall screw