Office Chair Screw Standards
Office chair screw standards vary depending on the specific part, design requirements, and chair type. Common specifications range from M3 to M10, and different parts and chair types need to be matched with corresponding sizes to ensure structural stability and safety.

Office Swivel Chair Screw Standards
The chassis screws of office swivel chairs are core load-bearing components, with common specifications being M6x20 and M10x300mm.
- M6x20: With a diameter of 6 millimeters and a length of 20 millimeters, it is suitable for lightweight or standard office swivel chairs. It is usually used for connecting the chassis to the seat frame, meeting the load-bearing requirements of daily office scenarios.
- M10x300: With a diameter of 10 millimeters and a length of 300 millimeters, it is used for heavy-duty or high-end office swivel chairs. Its thicker diameter and longer length can withstand greater weight, ensuring the stability of the chair during frequent adjustments or movements.
Gaming Chair Screw Standards
Due to their complex structural designs, gaming chairs have varying screw specifications depending on the connection part:
- Connection between the chassis and the backrest: Commonly M8x30 (with a diameter of 8 millimeters and a length of 30 millimeters). It needs to withstand the force of a person leaning back, so both the diameter and length are relatively large.
- Connection between the chassis and the seat frame: Commonly M6x25 (with a diameter of 6 millimeters and a length of 25 millimeters), balancing load-bearing capacity and structural compactness.
- Connection between the headrest and the back frame: Commonly M6x20 (with a diameter of 6 millimeters and a length of 20 millimeters). Since the headrest is relatively light, there is no need for an overly large specification.
- Connection between the armrests and the seat frame: M6 series screws are used, and the length is adjusted according to the thickness of the armrests to ensure the stability of the armrests during adjustment.
Screw Standards for Other Parts
- Non-load-bearing parts: For example, plastic chairs or armrest decorative pieces, M3/M4 screws can meet the requirements. Their small size is suitable for fixing lightweight materials.
- Metal load-bearing parts: For example, the connections of chair legs or bases, M5/M6 screws need to be used. Their stronger tensile strength can prevent metal parts from loosening or breaking.
The selection of office chair screw specifications requires comprehensive consideration of materials, load-bearing requirements, and usage scenarios. Incorrect matching may lead to structural instability or safety hazards. It is recommended to make replacements according to the chair's instruction manual or professional guidance.



