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304 knurled cup head hexagon bottom bunch tail screw, CBBGS4-CBBGS8 furniture bolts, cylindrical head screws

304 knurled cup head hexagon bottom bunch tail screw, CBBGS4-CBBGS8 furniture bolts, cylindrical head screws304 knurled cup head hexagon bottom bunch tail screw, CBBGS4-CBBGS8 furniture bolts, cylindrical head screws304 knurled cup head hexagon bottom bunch tail screw, CBBGS4-CBBGS8 furniture bolts, cylindrical head screws
  • Product description：As a specially designed fastener, the cup-head hexagon socket bottom tapered screw has been widely used in numerous fields due to its unique structure and performance characteristics. A proper underst
I. Product Features
  1. Cup-Head Design: The cup-head shape enables the screw to bear force more evenly during the fastening process. Compared with other ordinary screw head types, the cup head can effectively disperse the applied torque, reduce the risk of the screw head slipping due to excessive local force, and greatly improve the stability of fastening.
  2. Hexagon Socket Design: The hexagon socket structure provides convenience for operation. With the matching hexagon wrench or hexagon socket screwdriver, users can easily tighten or remove the screw. Especially in some narrow spaces where operation is inconvenient, the advantage of the hexagon socket design is more obvious, allowing flexible access for work.
  3. Bottom Tapered Design: This unique design enhances the torque transmission capacity of the screw. When the screw is tightened, the tapered part can better interact with the threads of the connected part, preventing the screw from loosening under vibration or force, thus making the entire connection structure more stable and reliable.
II. Application Scope

  1. Mechanical Equipment Field: Cup-head hexagon socket bottom tapered screws are widely used in the assembly and maintenance of various mechanical equipment. For example, they are used for fixing internal parts of power tools and connecting key components of machine tools. Their stable fastening performance ensures that the connection between various components will not loosen when the equipment is operating at high speed and under complex working conditions, thus guaranteeing the normal operation of the equipment.
  2. Furniture Manufacturing Industry: Whether it is office furniture or civil furniture, such screws play an important role in the assembly process. For instance, they are used for connecting the frames of office desks, fixing the shelves of bookcases, and assembling the structures of bed frames. Since the cup head can be well hidden under the surface of the furniture, it not only ensures the firmness of the connection but also makes the appearance of the furniture more beautiful and neat.
  3. Electronic Equipment Production: In the manufacturing of electronic products, there are extremely high requirements for the precision and stability of screws. Cup-head hexagon socket bottom tapered screws are often used for fixing the casings of electronic equipment and installing internal brackets. They can provide reliable fastening force in a limited space, meeting the requirements of compact and lightweight design of electronic products
  4. Automotive Manufacturing and Maintenance: Many parts of automobiles, such as engine components, chassis structures, and interior parts, need to be fastened with screws. Relying on their high strength and good anti-loosening performance, cup-head hexagon socket bottom tapered screws ensure the tight connection between various components in automotive manufacturing and daily maintenance, providing a guarantee for the safe driving of automobiles.

III. Usage Guide

  1. Selecting Appropriate Specifications: Precisely select the diameter and length of the screw according to the specific application scenario. For thinner plates, shorter screws should be used to avoid the screws being too long to penetrate the plates, which may affect the appearance or cause interference with other components; for thicker materials, longer screws are required to ensure sufficient fastening depth.
  2. Using Proper Tools: When installing or removing cup-head hexagon socket bottom tapered screws, it is necessary to use a hexagon wrench or hexagon socket screwdriver that perfectly matches the size of the hexagon socket hole of the screw. Improper tools may cause wear to the hexagon socket hole and slipping of the screw head, which not only increases the difficulty of operation but also may damage the screw and the connected part.
  3. Pre-Drilling Operation: When the screw needs to be screwed into a material with high hardness, it is recommended to perform pre-drilling first. Pre-drilling can effectively reduce the resistance when screwing in the screw, lower the risk of material cracking, and at the same time prevent the screw from slipping due to excessive force. The diameter of the pre-drilled hole should be slightly smaller than the thread diameter of the screw to ensure that the threads can be tightly engaged.
  4. Torque Control: To avoid screw breakage or thread damage caused by over-tightening, it is better to use a torque wrench to control the tightening force. The recommended tightening torque values vary for screws of different specifications and materials, which can be referred to in the relevant product manuals or standard specifications. In the absence of a torque wrench, the appropriate tightening force can also be roughly mastered through experience or repeated tests.

IV. Precautions

  1. Avoid Over-Tightening: Over-tightening the screw may cause a series of problems, such as deformation and breakage of the screw itself, damage to the connected part, and even stress concentration in the entire structure, affecting its service life. Therefore, it is essential to strictly control the force during the tightening process.
  2. Material Matching: Fully consider the compatibility between the material of the screw and the material to be fixed. Different materials have differences in chemical properties, thermal expansion coefficients, etc. Improper matching may cause chemical reactions, leading to problems such as corrosion and loosening. For example, in a humid environment, ordinary carbon steel screws should not be used to connect with stainless steel components to avoid electrochemical corrosion.
  3. Environmental Adaptability: Select screws with corresponding weather resistance and corrosion resistance according to different usage environments. In outdoor, humid, or highly corrosive environments, priority should be given to Stainless steel screws or screws with special anti-corrosion treatment to ensure that they can still maintain good performance in harsh environments.

With its unique design and excellent performance, the cup-head hexagon socket bottom tapered screw has become an indispensable fastener in many industries. In practical applications, as long as the correct selection, usage methods, and precautions are followed, its advantages can be fully utilized to provide a reliable guarantee for the stable operation of various equipment and structures.