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Office Chair Screw Size

Admin October 12, 2026

Common screw sizes for office chairs include m6, m8, m6x20, and m10x300mm. The specific choice depends on the connection part and the type of chair. Here are the details:

The common hexagon socket screw sizes in office chairs are mainly m6 and m8. Among them, the m6 screw has a diameter of 6 millimeters and is usually used for the connection between the chair base and the legs. This part needs to bear the overall weight of the chair, but the force is relatively dispersed. The strength and size of the m6 screw can meet daily use requirements and are convenient for installation and removal. The m8 screw has a diameter of 8 millimeters and is often used for the connection between the chair back and the seat. The connection between the back and the seat needs to withstand the relatively large pressure when a person leans back. The larger diameter of the m8 screw can provide stronger connection strength and ensure the stability of the chair back.

In addition, the common screw sizes for the chassis of office swivel chairs also include m6x20 and m10x300mm. The m6x20 screw has a diameter of 6 millimeters and a length of 20 millimeters, suitable for lightweight or standard office swivel chairs. These chairs are usually used in ordinary office scenarios and have moderate requirements for screw strength. The size of the m6x20 can balance connection strength and installation convenience. The m10x300mm screw has a diameter of 10 millimeters and a length of 300 millimeters, suitable for heavy-duty or high-end office swivel chairs. These chairs are usually used in scenarios that require long-term use or bear relatively large weights, such as conference rooms and executive offices. The larger diameter and length of the m10x300mm screw can provide stronger support and stability, ensuring that the chair will not loosen or be damaged during long-term use.

When choosing office chair screws, it is necessary to match them according to the specific structure and use scenario of the chair. If the screw size is not properly selected, it may lead to an insecure connection, affecting the service life and safety of the chair.