Slotted large raised cheese head screws

The slotted large cheese head screw with spherical surface is a variant of the cheese head screw, and it has its own characteristics in terms of structural features, specification dimensions, material treatment, application fields, as well as installation and disassembly:

Structural Features of the Slotted Large Cheese Head Screw with Spherical Surface

Head: It is in the shape of a large cheese head with a spherical surface. Compared with the common cheese head, this design can provide a larger contact area and better force distribution, reducing the pressure concentration on the surface of the connected parts. At the same time, the spherical surface design can play a certain buffering and self-adaptive role in some cases. When the surface of the connected part is uneven, the spherical head can fit better. There are axial slots on the surface of the head, and the common ones are single slot (slotted) or cross slot (Phillips), which is convenient for tightening or loosening operations with a screwdriver.

Shank: Similar to the common cheese head screw, it is a cylinder and has standard threads on the surface. The thread specifications and pitches are determined according to the size and usage requirements of the screw, and it is used to cooperate with nuts or parts with internal threads to achieve a firm connection.

Specification Dimensions of the Slotted Large Cheese Head Screw with Spherical Surface

The diameter range is usually between M3 and M20, and the common specifications include M4, M5, M6, M8, M10, M12, etc.

The length is generally between 6mm and 60mm, such as 8mm, 10mm, 12mm, 16mm, 20mm, 25mm, 30mm, 40mm, 50mm, etc. The specific length can be selected according to the actual application scenarios.

Materials and Surface Treatments of the Slotted Large Cheese Head Screw with Spherical Surface

Materials: Generally, materials such as carbon steel and stainless steel are used. After appropriate heat treatment, the carbon steel material can obtain high strength and toughness, and the cost is relatively low, which is suitable for most general mechanical connection occasions. The stainless steel material has excellent corrosion resistance and is suitable for corrosive environments such as humid conditions and acid-base environments, such as in the fields of food processing equipment, medical devices, chemical equipment, etc.

Surface Treatments: Common treatment methods include galvanizing, nickel plating, chrome plating, etc. Galvanizing treatment can form a zinc layer on the surface of the screw, effectively preventing rust, and it is an economical and practical anti-rust method. Nickel plating and chrome plating treatments can make the surface of the screw smoother and more beautiful, and at the same time enhance the corrosion resistance, which are often used in occasions with high requirements for appearance and corrosion resistance. In addition, for some applications with special requirements, surface treatment processes such as blackening and phosphating may also be used.

Application Fields of the Slotted Large Cheese Head Screw with Spherical Surface

Precision Instruments: It is often used in some precision instruments with high requirements for connection accuracy and stability, such as optical instruments and electronic measuring instruments. Its design of the large cheese head with a spherical surface can better meet the high-precision assembly requirements of the internal components of the instrument, ensuring the reliability and stability of the connection and reducing the impact on the accuracy of the instrument.

Electronic Equipment: It is also used in the production of electronic equipment, such as the assembly of the internal structures of laptops, cameras, etc. Due to the compact internal space and a large number of components in electronic equipment, the smaller specifications and good fastening performance of the slotted large cheese head screw with a spherical surface can meet its assembly requirements. At the same time, the spherical head can prevent damage to electronic components or circuit boards during the tightening process.

Mechanical Manufacturing: It is also applied in the connection of some mechanical parts. Especially when there is a certain difference in the flatness of the parts to be connected or a certain degree of micro-motion load needs to be borne, the slotted large cheese head screw with a spherical surface can, through the self-adaptive characteristics of its spherical head, better achieve a firm connection and improve the reliability of the connection.

Installation and Disassembly of the Slotted Large Cheese Head Screw with Spherical Surface

Installation: When installing, first select a suitable screwdriver according to the specification of the screw. Insert the screwdriver accurately into the slot of the screw head, and make sure that the screwdriver fits closely with the slot. Then rotate the screwdriver in a clockwise direction to gradually screw the screw into the threaded hole of the connected part. During the tightening process, pay attention to controlling the torque to prevent the screw from stripping, the threads of the connected part from being damaged, or the connected part from being deformed due to excessive torque. For some occasions with strict torque requirements, professional tools such as a torque screwdriver are needed to ensure that the specified torque value is achieved.

Disassembly: When disassembling, use the same screwdriver as for installation, insert the screwdriver into the slot, and rotate the screwdriver counterclockwise to unscrew the screw. If the screw is difficult to disassemble due to rust or being tightened too tightly, you can first spray rust remover on the surface of the screw, wait for a while for the rust remover to take effect, and then try to disassemble it again. Tools such as an impact screwdriver can also be used to increase the disassembly torque, but pay attention to the operating force to avoid damaging the screw or the connected part.