It's often said that screws are so cheap now, they're not even as expensive as cabbage, and many people don't care about their quality, thinking that as long as they can be installed and used, it's fine. However, Screw Sister still hopes that everyone will seriously consider each standard part they purchase. After all, small screws can lead to big problems. Too many accidents are related to the quality and loosening of screws. For your own safety and to prevent property loss, you need to be vigilant when buying standard parts!
Firstly, when we buy screws, the first thing we see is their appearance. Let me teach you how to choose standard parts based on their appearance.
Avoid screws that have turned black in color; imagine how distressing it would be if you installed them on your home appliances.
Screws with scratches significantly reduce the rust-prevention duration, so it's advisable not to purchase them.
Products with missing corners are useless for installation and use; it's better to exchange them as soon as possible.
Products with damaged threads won't fit properly even if you manage to install them, and they might damage other parts, so it's best not to buy them.
Screws with cracks in the head are actually damaged during the manufacturing process and are substandard products. Don't bring defective items home!
These are the methods for identifying standard parts when purchasing. Besides those working in the fastener industry, sometimes families, companies, institutions, and schools also need to purchase standard parts. Even if you're not a fastener expert, these methods can still help you filter out inferior products and ensure you buy reliable standard parts.
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