Locking hexagonal nut
By combining the hexagonal nut body with the insert slot of the nut fastener and the wedge-shaped bevel design of the fastening pad, the problems of high cost, inconvenient operation and easy failure of existing anti-loosening hexagonal nuts are solved, realizing quick disassembly and assembly and efficient maintenance.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- NINGBO ZHENGYI FASTENER CO LTD
- Filing Date
- 2025-08-26
- Publication Date
- 2026-06-09
AI Technical Summary
Existing anti-loosening hexagonal nuts are costly, inconvenient to maintain, and inflexible to operate in scenarios where high-strength anti-loosening is not required. Traditional locking structures are prone to failure and cannot meet diverse usage needs.
The hexagonal nut body engages with the insert slot of the nut fastener, combined with a fastening pad and spring structure, to achieve flexible assembly and disassembly. The wedge-shaped bevel of the fastening pad increases friction, disperses stress, and improves the anti-loosening effect. The design of the insert and the limiting groove ensures connection stability, and the pressing pad structure simplifies operation.
It enables quick disassembly and assembly and efficient maintenance, reduces maintenance costs, improves anti-loosening effect, adapts to operation in narrow spaces, and reduces the risk of accidental failure.
Smart Images

Figure CN224339315U_ABST