What should we do when we encounter the screw thread that cannot be unscrewed? (1) Put something on the screwdriver head, such as double-sided tape, non-woven fabric, etc. If there are no conditions, the paper can also increase the friction! (2) Inject a small amount of 502 glue into the screw hole,... read more
Screws are the basic parts of machinery and are in great demand. Usually bolts, screws, rivets, etc. are in order to ensure safety or generally do not consider the impact of temperature in harsh environments or other dangerous working conditions. Commonly used materials are carbon steel, low alloy s... read more
When we use stainless steel hexagon nuts, we often encounter slippery teeth, which makes stainless steel nuts unusable; and carbon steel nuts rarely do this. So what is the reason for this annoying problem? Under normal circumstances: stainless steel nuts of the same diameter do not have the strengt... read more
Civil testing methods: 1. Use a magnet to attract, it is not a 304 screw if it can be attracted, and an authentic 304 screw if it cannot be attracted. 2. Looking at the surface, if the surface gloss is bright, it is a 304 screw, and if it is not bright, it is a fake. 3. Identify the screw with potio... read more
1. The cleaning and drying work of the hinge in the early stage should be done as required, otherwise no matter how good the electroplating treatment is in the later stage, it will not be able to achieve the purpose of rust prevention. Some unscrupulous merchants use unclean water when cleaning or t... read more
Yuyao Xintai Hardware Co., Ltd. was founded in 2005, which is a professional China construction anchor bolts manufacturers and concrete anchor bolts factory,our company engaged in various kinds of expansion bolt,high strength fasteners. We are near to Hang Zhou Bay, and cover 7000 square meters.
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