Office Chair Screw and Casters

Here is the information about office chair screws and casters:

Screw Specifications: The screw specifications vary among different styles of office chairs. For office chairs with casters of models 103/302/303/401/305/306, four screws with a specification of 6*20 are required when installing the seat cushion tray. Here, '6' usually represents a screw diameter of 6 millimeters, and '20' represents a screw length of 20 millimeters. For the T37 hollow-out model office chair, the screws used for installing the tray have a specification of (6x18), meaning the screw diameter is 6 millimeters and the length is 18 millimeters. Clearly understanding these screw specifications helps in accurately selecting the appropriate accessories during installation or screw replacement, ensuring the firmness and stability of the installation. Using mismatched screws may result in loose installation, causing issues such as looseness and wobbling, affecting the normal use of the office chair and potentially posing safety hazards.

Caster Screw Operations: The threaded casters of office chairs can be operated using a small wrench. When disassembling or installing, turning to the left is the direction to loosen the screws. The general thread specification for standard swivel chairs is 10mm. Knowing this specification is crucial for replacing casters or performing related maintenance work. When replacing casters, use a small wrench of the appropriate specification and turn the screws in the correct direction to easily remove the old casters and install new ones. If the thread specification and turning direction are unclear, it may lead to screw damage, inability to properly disassemble or install the casters, increasing the difficulty and cost of maintenance.

Precautions: When performing operations related to office chair screws and casters, ensure the use of the correct tools, such as a small wrench of the appropriate specification. Also, pay attention to the force applied when turning the screws to avoid overexertion, which could cause the screws to strip or damage other parts of the office chair. If you are not very familiar with the operations, you can refer to the office chair's instruction manual or seek help from professionals.