Measures to prevent locking of stainless steel fasteners

1. When using stainless steel fasteners, do you always lock the nut at a fixed speed?

If you are a first-time user or a user who is not familiar with the process of stainless steel products, generally speaking, slowing down the locking speed can greatly reduce the chance of locking. Because heat energy often occurs when the lock is locked, when the heat energy increases, the probability of lockup will increase. When in use, the speed of locking stainless steel fasteners should be lower than the speed of locking carbon steel.

2. Do you lubricate the screws or nuts before locking?

If the answer is no, it is recommended to use butter, molybdenum disulfide, graphite, mica or talc to lubricate the internal and external tooth lines to reduce the occurrence of locking. The layer is also an effective lubrication method. The layer is processed. The nut will be as if a layer of lubricating film is shrunk between the nut and the screw. (Guide: The external causes of the locking phenomenon of stainless steel fasteners)

3. Do you choose screws and nuts of the same material grade?

If the answer is yes, it is recommended to use different grades of screws and nuts, such as 304 with 316, etc., but it should be noted that the selected stainless steel grade still meets its own requirements for rust and corrosion resistance.

In addition, the most common case of locking occurs when the flange is tightened. If you have paid attention and acted in accordance with the above-mentioned points, including using washers, nuts, screwing the nuts diagonally, and slowly turning them to the proper tightness, etc., if you still can’t solve them, often after pre-locking You can’t remove it. Finally, you have to temporarily use carbon steel nuts when pre-locking the flange device, and then use stainless steel nuts when the flange is officially locked. Find one between beautiful, rust-resistant and non-locking. balance point.

More related stainless steel stamping industry news: