Why Do Stainless Steel Screws Lock
Locking is often encountered when assembling stainless steel screws. Locking, also known as biting death, refers to the phenomenon that bolts and nuts bite and lock during the fastening process, especially between stainless steel screws and stainless steel nuts. At the same time, stainless steel screws may also appear discolored.
As a professional fastener manufacturer, Xinchi is happy to discuss with you how to avoid the locking phenomenon of stainless steel screws and the reasons for discoloration.
Reasons for locking stainless steel screws may include the following:
Thread inclination Angle and the softer characteristics of stainless steel: During the installation process, the uneven application of force or inclination will cause the central axis of the screw and nut to be tilted too much, making the thread vulnerable to damage, resulting in the phenomenon of bite and lock.
Excessive locking force and low thermal conductivity of stainless steel: Stainless steel screws generate friction heat during rotation, while stainless steel has low thermal conductivity. When the resulting pressure and heat destroy the chromium oxide layer of stainless steel, the metal teeth will directly block or shear, and the stainless steel is soft, easy to produce an adhesion phenomenon. The greater the locking force, the greater the heat generated, and the stainless steel screw teeth are prone to adhesion.
To avoid locking of stainless steel screws, the following measures can be taken:
Uniform application of attention during installation, avoiding tilt, and ensuring the vertical alignment of the central axis of the screws and nuts.
Control the size of the locking force to avoid excessive pressure. At the same time, lubricants can be used to reduce the generation of friction heat and make the screw rotate more smoothly.
Choose good quality stainless steel screws and nuts to ensure that the surface is smooth and free of scratches or damage.
XINCHI is a trustworthy fastener company, especially in furniture nuts. We have a factory, founded in 2007. And we are the designated fastener supplier to“STAPLE”. As a trusted fastener supplier, XINCHI can offer a wide range of high-quality fasteners, including nuts, screws, bolts, rivets, washers, etc. If you want to know more about fasteners or want to wholesale fasteners, please feel free to contact us. And then our experienced and expert service team will reply to you as soon as possible.