
GB65 slotted cylinder-head screws are standard fasteners that comply with the national standard (GB/T 65-2016). They are widely used in industrial manufacturing, automotive, electronic communication, medical devices, and other fields. These screws feature a cylindrical head and a slotted drive, offering excellent anti-slip performance and torque transmission capabilities. This article provides a detailed introduction to the usage and application scenarios of GB65 screws.

Usage of GB65 Slotted Cylinder-Head Screws
1. Tool Selection
The head of GB65 screws features a single-slot drive, requiring a flat-head screwdriver or an electric screwdriver for installation. Select a screwdriver size that matches the slot width of the screw head to avoid damaging the head during installation.
2. Preparation Before Installation
Before installing GB65 screws, ensure the precision of the threaded hole. Since the screw head is cylindrical, the installation hole should be a straight hole without a countersink. If the screw head needs to be flush with the installation surface, a washer can be used for adjustment.
3. Installation Steps
Align the screw with the hole, ensuring it is perpendicular to the installation surface.
Insert the screwdriver gently into the slot of the screw head and rotate evenly until the screw is fully tightened.
If using an electric screwdriver, pay attention to controlling the tightening torque to avoid damaging the screw or the installed component due to excessive tightening.
4. Notes for Attention
Keep the screwdriver perpendicular to the screw head during installation to prevent slipping or damage to the head.
For applications requiring repeated disassembly, consider using high-strength and corrosion-resistant materials, such as stainless steel.
Regularly inspect installed screws to ensure they have not loosened due to vibration or other external forces.

Application Scenarios of GB65 Slotted Cylinder-Head Screws
1. Automotive Manufacturing
In the automotive industry, GB65 screws are commonly used to fasten internal vehicle components, especially in areas requiring vibration resistance and high-temperature tolerance. The cylindrical head design provides sufficient clamping force while maintaining a neat appearance.
2. Electronic Communication Equipment
In electronic communication devices, GB65 screws are used to secure PCB boards and electronic component housings. The slotted design allows for a flat surface, enhancing aesthetics.
3. Medical Devices
In medical devices, GB65 screws are used to fasten the housings and internal components of precision instruments. The cylindrical head design and slotted structure provide higher installation precision and stability, meeting the requirements for aesthetics and cleanliness in medical equipment.

4. Construction and Furniture Industry
In construction and furniture manufacturing, GB65 screws are used to fix components such as door frames, window frames, and drawer slides. The cylindrical head design allows for a flat surface, enhancing aesthetics. Additionally, stainless steel screws offer good corrosion resistance, making them suitable for damp environments.
5. Military and Aerospace
In the military and aerospace sectors, the high strength and reliability of GB65 screws make them an ideal choice. The cylindrical head design reduces air resistance, improving the performance and safety of equipment.
6. Food Machinery
In food machinery, GB65 screws are used to secure equipment housings and internal components. The stainless steel material and cylindrical head design meet the requirements for hygiene and durability in food processing equipment.
Technical Specifications of GB65 Slotted Cylinder-Head Screws
Materials: GB65 screws are available in materials such as carbon steel, stainless steel (e.g., 304, 316), and aluminum alloy. Stainless steel is particularly suitable for applications requiring high corrosion resistance.
Strength Grades: Common strength grades include 4.8 and 5.8.
Surface Treatments: Screws can be finished with white zinc, blue-white zinc, black zinc, blackening, zinc-nickel alloy, hot-dip galvanizing, and other coatings.
Size Range: The diameter range of the screws is from M1.6 to M10, with lengths customized according to specific requirements.
Conclusion
With their unique design, high strength, and corrosion resistance, GB65 slotted cylinder-head screws have become ideal fasteners for multiple fields, including automotive, electronic communication, medical devices, construction, military and aerospace, and food machinery. By mastering the correct installation methods and selecting appropriate materials, their performance advantages can be fully utilized to meet the demands of various complex working conditions. As industrial technology continues to evolve, the application scope of GB65 screws will further expand, providing more reliable fastening solutions for modern manufacturing.