Office Chair Screw Accessories
Office chair screw accessories come in a variety of types, covering different specifications and functions. Common types include socket head cap screws, internal and external hexagon screws with anti-slip teeth, five-star rubber-headed screws, washer-headed knurled screws, and extended rivets, among others.
Socket head cap screws are commonly used high-strength fasteners in office chairs. For example, 12.9-grade black socket head cap screws include specifications such as M3 high-strength fasteners without head screws and M4 concave-end set screws. These screws are installed using a hex key and have a headless design, making them suitable for scenarios where screws need to be hidden or where space is limited, such as the connection between the chair back and the seat cushion, ensuring structural stability and a clean appearance.
Internal and external hexagon screws with anti-slip teeth, represented by M8*20 black zinc 8.8-grade screws, feature an internal and external hexagon structure combined with anti-slip teeth design, enhancing the friction between the screw and the connected part to prevent loosening. The black zinc coating provides corrosion protection, making them suitable for components that need to withstand significant vibration or frequent adjustments, such as the fixation of chair legs to the chassis, ensuring long-term stability.
Five-star rubber-headed screws, such as M8 star-shaped rubber-coated bolts, have a five-pointed handle design for easy manual adjustment without the need for tools for installation or removal. The rubber-coated material increases friction while protecting the contact surface from scratches, commonly used in the height adjustment mechanism or foot fixation of office chairs, balancing operational convenience and safety.
Washer-headed knurled screws, such as furniture screws with semi-circular heads, internal hexagon sockets, washers, and knurled teeth in M6/M8 sizes, feature a washer design to distribute pressure, preventing the screw from loosening or damaging the material surface. The knurled teeth structure enhances bite force, suitable for connecting wooden or soft materials, such as the fixation of the chair seat to the armrests, ensuring a firm connection without noise.
Extended rivets, such as T-shaped screws for office chair chassis in M10X300MM size, have an extended design to meet special structural requirements, such as the deep connection between the chair back and the chassis. The rivet structure provides high-strength fixation, suitable for components that need to withstand significant tensile forces, ensuring overall structural stability.
In addition, 12.9-grade high-strength cup-headed internal hexagon screws (black extended carbon steel cylindrical head fully threaded bolts M1.4 - M12) offer a fully threaded design for easy adjustment of installation depth, suitable for scenarios requiring precise fixation, such as the connection between chair wheels and chair legs, ensuring flexibility and durability.
