GB818/DIN7985 Cross recessed pan head antitampering screws are screws with antitampering features designed to include a pan head and cross recesses for easy installation and removal with a Phillips screwdriver. This screw is characterized by high preload and good anti-loosening properties, and is suitable for applications that require reliable fixing and are not easily loosened.

These screws are usually made of stainless steel, carbon steel, or other metallic materials. Surface treatments may include zinc plating, nickel plating, passivation, etc. to improve corrosion and wear resistance. The chemical composition of the stainless steel material should be within the range specified in the steel group, the chemical composition of A2 and A4 stainless steel is specified in the following table .

Advantage:

Anti-loosening performance: the special design makes the screws not easy to loosen when subjected to vibration or shock, which improves the reliability of the connection. High strength: usually made of high-strength materials, able to withstand large preload. Easy to install: the cross slot design allows the screws to be quickly installed and removed using a standard Phillips screwdriver. Compatibility: Compliance with GB818 standard ensures compatibility with other standard parts.

Scope of Application

Mechanical assembly: used for fixing parts in mechanical equipment, such as bearings, gears, etc. Automobile manufacturing: used for fixing automobile chassis or engine parts. Furniture Manufacturing: Used to join metal parts of furniture, such as table legs and frames. Precision Instruments: Used for fixing and adjusting parts in instruments that require precise adjustments.