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This product is a type of non-standard combination screw (Sems Screw), which adopts a disc head structure and is designed with pre-installed plastic and metal washers. It integrates fastening, buffering, and insulation functions, and is suitable for application scenarios that require high assembly efficiency and structural stability.
By pre-assembling the structure, it is possible to effectively reduce manual packaging processes and significantly improve production line efficiency, making it a cost-effective choice for modern manufacturing.
The main body of the product is a small-sized self-tapping or machine tooth structure, suitable for thin plate connection or precision component fixation. The screw head is designed as a disc head, with a large force area, which helps to disperse pressure and avoid damage to the installation surface.
This combination effectively reduces vibration transmission and minimizes direct contact between metals, thereby improving overall reliability.
In practical applications, this type of combination screw is particularly suitable for electronic devices, precision instruments, and lightweight structural assembly. It is widely used in scenarios such as circuit board fixation, shell connection, or module installation.
Ensures secure attachment in high-vibration environments.
Plastic washers provide necessary electrical isolation.
Pre-installed structure reduces the risk of component loss.
The product can be made of carbon steel or stainless steel according to different needs. It supports multiple surface treatment processes to meet anti-corrosion and appearance requirements in different environments:
The material and thickness of the plastic gasket can also be adjusted according to the application scenario to achieve more accurate assembly results.
This type of non-standard combination screw supports customization according to the drawing, and can flexibly adjust the head shape, thread specifications, gasket structure, and combination form.
It is widely used in consumer electronics, household appliances, automation equipment, and various industrial products, serving as an ideal fastening solution to improve assembly efficiency and structural stability.
It is an integrated fastening unit designed with a disc head and pre-installed plastic and metal washers, engineered to integrate fastening, buffering, and insulation functions into a single step.
Metal washers reinforce structural support stability, while plastic washers offer buffering, electrical insulation, and surface protection. Together, they prevent surface damage and reduce vibration transmission.
Screws can be manufactured from carbon steel or stainless steel, with surface treatments including Black Oxidation, Galvanizing, Nickel Plating, or custom anti-corrosion coatings.
The pre-assembled washers eliminate manual assembly and separate washer packaging stages on the production line, saving labor time and reducing the risk of component loss.
Yes, full customization based on drawings is supported, including adjustments to head shapes, self-tapping or machine thread specifications, and plastic gasket materials and thickness.
