PRODUCT
Material: Carbon steel;Stainless Sttel
Finish: Black Oxide;Plain
MOQ:1000PCS
Samples: Free
Place of Origin: Zhejiang China
Product Details
This is an internal tooth locking gasket manufactured through precise stamping technology. Its innovative inner ring radial tooth structure is specifically designed for anti-loosening of threaded connections in high-vibration environments. The product forms a mechanical interlock with the bolt head through multiple sets of inclined teeth, generating continuous elastic locking force during the tightening process, effectively preventing the bolt from self-loosening under dynamic loads. It is available in two material options: stainless steel in its natural color and carbon steel with blackening treatment. The specifications cover the full range from M3 to M20, meeting the diverse tightening requirements for everything from light-load electronic equipment to heavy industrial machinery.
1. Dual-material system, suitable for various scenarios
Stainless steel model: 304/316 material, resistant to acid and alkali, anti-salt fog, suitable for harsh corrosive environments such as marine engineering, food processing, and medical devices
Carbon steel blackening model: Surface treated with black oxidation, superior rust prevention ability compared to ordinary galvanization, significant cost advantage, suitable for large-scale industrial applications
2. Internal gear meshing locking technology
The gear teeth are designed with an inclination angle of 45° - 60°, when tightened, they embed into the groove at the bottom of the bolt head, forming multi-point mechanical locking
Compared to external gear gaskets, the internal gear structure is more concealed and aesthetically pleasing, and it will not damage the surface of the connected parts
3. Full specification coverage, no selection worries
From micro M3 to heavy-duty M20, there are over 10 standard specifications. The inner diameter, outer diameter, and thickness dimensions strictly follow international standards such as GB/T 861.1 and DIN 6797
4. Elastic reusable
High-quality spring steel or stainless steel material endows the gear teeth with excellent rebound performance, supporting multiple disassembly and assembly cycles, reducing maintenance costs
physical design:Ring base + inner ring are evenly distributed with 8 to 16 groups of teeth (depending on the specification), the tooth tops have a circular arc transition to avoid stress concentration.
Material & Technics:Stainless steel: 304 (A2-70), 316 (A4-80); Carbon steel: 65Mn spring steel, hardness HRC 40-48
Process details:Precision progressive die stamping results in clear tooth profiles, thorough deburring treatment, and smooth edges without sharp corners.
Specification coverage:Inner diameter tolerance is H11 grade, outer diameter tolerance is h14 grade, flatness is ≤ 0.15mm, ensuring assembly fit.
surface treatment:Stainless steel: Original color with a shiny finish / Passivation treatment; Carbon steel: High-temperature blackening oxidation (Fe₃O₄ coating layer), Salt spray test ≥ 48 hours
Material selection suggestions
For indoor dry environments and cost-sensitive projects → Carbon steel blackened model
For outdoor humid, acidic and alkaline media, food and medical grade requirements → Stainless steel model
Installation points
Ensure that the teeth face the bolt head side, and the flat side fits the connected component
Use a torque wrench to tighten according to the standard value. Over-tightening may cause plastic deformation of the teeth
When used with flat washers, the inner teeth washer should be placed between the flat washer and the bolt head
Storage and maintenance
The carbon steel model should be stored in a dry and ventilated environment to avoid co-storage with corrosive chemicals
Although the stainless steel model is corrosion-resistant, it still needs to avoid direct contact with carbon steel to prevent galvanic corrosion
