High-Quality Cotter Bolt Manufacturer
Core Structure
A typical structure includes a pin shaft, mounting block, connecting rod, and movable nut. The pin shaft surface is often coated with a plastic sealant to reduce wear. The right end is fixed to the mounting block, which has a cross-shaped mounting groove and houses the connecting shaft and movable rod. The movable rod has anti-slip textures. The left end of the connecting rod has threaded grooves and linearly arranged fixing holes to accommodate different installation sizes. The movable nut is equipped with a movable washer with anti-slip protrusions to enhance the anti-loosening effect. Furthermore, the movable nut and mounting block are often hexagonal of the same specification, facilitating both hand operation and wrench-assisted disassembly.
Key Advantages
Installation requires no wrench; it can be installed by hand by opening the movable rod on the mounting block and rotating it in conjunction with the fixing block of the movable nut. It also features an anti-slip and rust-proof design; the anti-slip protrusions on the movable washer prevent the nut from loosening, and the rust-proof paint coating on the component surface extends its service life. It is highly adaptable; multiple fixing holes on the connecting rod can accommodate various size installation requirements.
Applicable Scenarios
Suitable for hinge joints in mechanical components, such as linkages in small mechanical equipment, reinforcement connections in furniture hinges, and the fixing of some lightweight mechanical structures that do not require large tools for installation.













