When M3 carbon steel countersunk head long screws become bent…
When M3 carbon steel countersunk head long screws become bent… When you want to use long screws urgently, the screws are bent. What should you do? After a pleasant communication with Miss Liang from the sales department of Shi Shi Tong, Mr. Wang from Hangzhou decided to give 200 M3 carbon steel countersunk head long screws with bent rods to Shi Shi Tong for straightening. According to Mr. Wang’s experience, Ms. Liang first told Mr. Wang the reason for bending M3 carbon steel countersunk head long screws . Because Mr. Wang required to improve the hardness, strength, and corrosion resistance of the screws, the original last factory made heat treatment of the screws, that is, hard surface treatment. After measurement, the rods of the screws are bent from 0.2mm to 1.2mm. The reason for this is that carbon steel screws are usually heat treated as a bunch of screws, so there are always unevenly heated screws, which can cause them to bend. In addition, the rate ...