304 stainless steel round head cross groove female nail for locking belt screw nut combination ledger nail M3/M4/M5

Advantages of 304 stainless steel eleven character mother screw core

1. 304 stainless steel material, corrosion-resistant and environmentally safe in all scenarios: containing a high proportion of chromium nickel alloy, the surface forms a dense oxide film, which can resist moisture, mild acidity and alkalinity, outdoor rain and dew, and other environments. It is not easy to rust in kitchen, bathroom, balcony, non coastal outdoor and other scenarios, and its service life is 3-5 times that of ordinary carbon steel screws; The material is non-magnetic, environmentally friendly and non-toxic, with no risk of coating peeling off. It can be adapted to food contact related equipment (such as fixing small food machinery parts), children's products, bathroom hardware and other scenarios that require material safety.
2. Eleven character slot design, efficient disassembly and strong adaptability: the slot type is compatible with Phillips screwdrivers, flathead screwdrivers, and can also be adapted to electric screwdrivers, with precise positioning and more stable torque transmission. Compared with ordinary Phillips slots, it is less likely to experience "slipping" (slot slipping and damage); Whether it is manual repair or batch assembly, it can be quickly operated, especially suitable for scenarios with limited space and difficult tool alignment, making it easy for beginners to get started.
3. Combination structure of mother and child, tightening and anti loosening+flexible installation: composed of "mother screw (with internal thread)+daughter screw (with external thread)", dual fixation is achieved through the engagement of mother and child threads, which is more stable than the connection of a single screw and can cope with slight vibration scenarios (such as small equipment and household hardware), and is not easy to loosen; And the depth of the mother child bite can be adjusted according to the thickness of the fixed workpiece, adapting to different thicknesses of plates, metal parts, and plastic parts without the need for additional nuts, making the installation process simpler.