Drywall nail gypsum board nail self-tapping

Products name:drywall screw

size: 6# 8# m3.5 m3.9 m4

finish:Phosphating black/grey   Galvanized

packing：box and carton

sample:available

Construction period：10-15days

material：1022A

quality：Support Detection

type：coarse thread and fine thread

fine thread:Phosphating dry-wall screw is the most basic product line, while blue-white zinc dry-wall screw is a supplement, both the scope of application and the purchase price is basically the same. Slightly different is that black phosphating has a certain degree of lubricity, attack speed (the speed of penetration into the specified thickness of steel plate, is a quality assessment index) slightly better, while blue and white zinc in the anti-rust effect slightly better, and the product color light, not easy to paint after decoration. There is almost no difference between blue and white zinc and yellow zinc in rust prevention ability, only the use of different habits or user preferences

coarse thread:Single-thread coarse-tooth dry-wall screw has wider thread and faster tapping speed. At the same time, it is more suitable for wood keel installation than double-thread fine-tooth dry-wall screw because it can not destroy the structure of wood material itself. In foreign countries, it is very important to choose suitable fasteners. Single thread coarse-tooth dry-wall screw is a substitute for double-thread fine-tooth dry-wall screw, which is more suitable to be used in the connection of wooden keel. In the domestic market, for a long time is all the use of double-thread fine-tooth dry-wall screw, the use of change habits need a certain time.