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The hardened external tooth lock washer works better than other options because it adapts to changing loads. Its teeth make small indentations that fight rotational force more effectively than split washers. Tests show it resists vibration 30% better than nylon lock nuts. The design helps handle thermal expansion in engines or compressors. Materials that conduct electricity, like copper alloys, let it ground electrical systems. Unlike chemical threadlockers, you don’t have to wait for it to dry,you can take it apart right away. These features make the external tooth lock washer a reliable choice for any important fastening job where you need to prevent loosening.

When installing a hardened external tooth lock washer, you need to line up its teeth with both the fastener and the material it’s attached to. This helps it lock as well as possible.

Application

Specialized hardened external tooth lock washers are made for specific industries: non-magnetic beryllium copper ones for MRI machines, high-temperature Inconel® washers for turbines, and PTFE-coated models for food processing gear. Aerospace versions get X-ray checks to make sure they have no flaws. Car versions have thinner designs to fit in tight engine spaces. Custom tooth patterns are created for the unique torque needs in robotics or medical devices. By working with manufacturers, suppliers provide washers that are optimized for each industry’s specific pressures, temperatures, and rules.

Quality rules

Q: Do those hardened external tooth lock washers have to follow any official rules when they’re made?

A: Yep, these hardened external tooth lock washers gotta follow global standards to make sure they’re up to scratch and fit with other hardware. The big ones are DIN 6797 (Europe), SAE J933 (USA), and ISO 7080. These rules cover stuff like sizes, what materials to use (e.g., carbon steel needs to be 40-50 HRC hard), and how to test ’em,like dunking them in salty water to check rust resistance.

Xiaoguo® factory has ISO 9001 or IATF 16949 (for automotive parts), our products meet the standards, no corners are cut, and test papers or material certificates can be provided.Cheapo non-standard hardened external tooth lock washers might save cash now, but they’ll likely fail fast or get you in trouble in strict industries (think oil rigs or skyscraper bolts). Stick to the rules unless you love redoing work.