Blue Ruspert Square Hole Flat Head Self Tapping Screw

Jinrun is a professional manufacturer of self tapping screw in China.chipboard screw are divided into double DIN7505 flat head chipboard screw, pan head chipboard screw, etc., the production range can be from 2.5-8.0, the longest production length can reach more than 220mm, the general surface treatment are galvanized and yellow zinc plating, there are special surface treatment, such as this blue ruspert. Hot rust treasure is a kind of paint for building screws, its main performance is strong anti-corrosion, salt spray time 500-1500H; Colorful, according to customer requirements to modulate color, to meet customer requirements; The baking temperature is relatively low, generally controlled within 200 degrees Celsius, especially construction screws or drilling nails, if the baking temperature is too high, it is easy to cause parts tempering, hardness reduction, resulting in increased risk of fracture in actual use of the product, the choice of surface coating hot rust can avoid this problem; The surface finish and adhesion performance is stronger than dacromet, which is more beautiful and can better meet the needs of customers.