Several points for lightning protection when purchasing m8 stainless steel hexagon socket screws

Several points for lightning protection when purchasing m8 stainless steel hexagon socket screws
For fasteners, if you purchase them without understanding them, it’s easy to fall into the trap. After all, the fastener industry is not that simple. For example, what should we pay attention to when purchasing m8 stainless steel hexagon socket screws?
1、 What is the specific brand of stainless steel in the m8 stainless steel hexagon socket screw
For those unfamiliar with screws, stainless steel is stainless steel, making no difference. However, for those familiar with stainless steel, there are many types of stainless steel, such as 201, 304, 316, and other brands. The composition, performance, and price of different brands of stainless steel are different.
Stainless steel screws of brand 201 are very cheap compared to other brands of stainless steel, and their quality is not very good, they are easy to rust, and their corrosion resistance is not very good.
Stainless steel of 304 brand is widely used in screws. After all, the corrosion resistance and quality of screws produced by this brand are also relatively good.
2、 Whether the go-no go gauge is available
The thread go/no go gauge is mainly used to confirm that the manufacturer has not cut corners. However, this is only suitable for use on machine screws.
Some screw manufacturers do not use standard wire diameters when producing screws, but instead use smaller wire diameters for production. The outer diameter of the screw thread produced by this method is consistent, and it can pass through the gauge, but the stop gauge cannot stop it.
3、 Whether there are defects on the surface and whether the dimensions meet the requirements
“If used on exterior components, the surface of the screw must be free of defects, which may affect its aesthetics and size, otherwise problems may occur during assembly.”.
When purchasing m8 stainless steel hexagon socket screws, it is not only necessary to pay attention to these points, but also requires the delivery date of the screws, after-sales issues, and so on.