Advantages and disadvantages of galvanized stainless steel bolts
Hot-dip galvanizing is also called hot-dip galvanizing and hot-dip galvanizing: it is an effective method of metal anti-corrosion, mainly used in metal structures and facilities in various industries. The rust-removed steel parts are immersed in a molten zinc solution at about 500°C to attach a zinc layer to the surface of the steel parts, thereby achieving the purpose of anti-corrosion. In the standard parts industry, galvanizing is often used to achieve the purpose of corrosion and rust prevention.
Hot-dip galvanized bolts are also called hot-dip galvanized bolts. After degreasing and derusting, the bolts present a non-polluting and infiltrating surface. They are immediately immersed in a plating tank where the zinc is melted beforehand. A method of forming a zinc coating. The coating of hot-dip galvanized bolts is thick, generally 30-60 microns, and the coating has a high anti-corrosion ability. Steel parts suitable for outdoor work. So, what are the advantages and disadvantages of galvanized bolts, the following standard parts manufacturers will introduce you:
The advantages of galvanized bolts:
1. Strong corrosion resistance, durable;
2. The processing cost is low, and the price is relatively low compared to stainless steel bolts;
Disadvantages of galvanized bolts:
1. The zinc plating of the bolt will reduce the mechanical strength of the bolt thread;
2. The thickness of the galvanized layer is different, which affects the use with the nut;
3. If the process is not handled properly, it will cause pollution.
What is the difference between high-strength nuts and general nuts, in fact, you only need to understand their standards and other characteristics to easily distinguish them. The so-called high-strength nut is a special bolt with high strength and high fatigue resistance used in special equipment or engineering. Of course, generally high-strength nuts are used with high-strength bolts to achieve better application. We generally see that many bolts with M heads in the market are ordinary nuts, not high-strength nuts. The calibration side of the general hexagonal head nut is the following pattern M30, and M30 indicates the thread standard, that is, the inner diameter of the thread is 30mm. Grade 10 indicates the functional grade of the bolt, and tZn is the surface treatment method. Other types of bolts also have their own expressions, but generally threaded bolts have to use the original functional grade of "M": The functional level of the nut is divided into 3, 4, 4, 5, 5.8, 6...
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