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Place of Origin:Guangdong, China (Mainland)
Packaging & Delivery
Packaging Details:opp bag /carton
Delivery Time:7 days
the principle of the self-locking nut is generally based on the friction force. The principle is that the embossed tooth is pressed into the preset hole of the sheet metal. Generally, the diameter of the preset hole is slightly smaller than the pressure rivet nut. The nut is used to connect with the locking mechanism. When the nut is tightened, the locking mechanism locks the ruler, and the frame cannot be freely moved to achieve the purpose of locking; when the nut is loosened, the locking mechanism is disengaged from the ruler and the frame edge is Ruler moves.
The material of common hinges is mainly made of brass and stainless steel. The brass hinges are generally yellowish and the better, which indicates that the content of copper is high. Poor hinges will cut corners, failing to meet standards in terms of thickness and thickness. Good hinge thickness is about 3 mm, and poor hinges are relatively thin. Should choose a good sealing performance hinges, open and close, pull several times to feel its flexibility and firmness.