Din 509e06x02 Exclusive ((better)) Official
Sharp internal corners act as stress risers, concentrating mechanical forces and inviting fatigue cracks. The precisely controlled 0.6 mm radius distributes kinetic energy evenly, preventing structural failure under operational loads. 2. Standardized Tooling & Cost Savings
Modern electric vehicle (EV) cooling fluids and biofuels attack standard hexavalent chromium passivation. The exclusive X02 sealant is engineered to resist formic acid and modern glycol mixtures, making DIN 509E06X02 exclusive a preferred code in EV battery tray fasteners.
This designation is – replaced by DIN EN ISO 4046 and ISO 2081 (for zinc coatings). din 509e06x02 exclusive
| Your need | Modern replacement | |-----------|--------------------| | Same appearance + slightly better corrosion | ISO 2081 – Fe/Zn 5c or 8c | | Higher corrosion resistance | ISO 2081 – Fe/Zn 8c2 (yellow) or Fe/Zn 12c2 | | RoHS compliance (hexavalent chrome free) | Trivalent blue passivation – e.g., Fe/Zn 8c (trivalent) | | Automotive-grade | ASTM F1941 – Fe/Zn 6C (Type VI – blue) |
A very common application of the Type E undercut is in threading. When cutting threads on a lathe, the tool must have a "run-out" zone where it can decelerate and move away from the workpiece to avoid a jagged, unfinished thread end. The DIN 509 undercut provides a smooth, standardized relief groove for the threading tool to exit cleanly. Without this relief, the thread would be incomplete or would require a secondary deburring operation. Sharp internal corners act as stress risers, concentrating
) of the groove below the primary outer diameter surface is exactly 0.2 millimeters. Engineering Advantages of the E06x02 Relief Groove
Search for companies holding IATF 16949 (automotive) or AS9100D (aerospace) certifications that list "X02 proprietary finishes" in their scope. Look for German firms like AHC Oberflächentechnik , Rösler , or Dörken MKS-Systeme (though Dörken uses different codes). Standardized Tooling & Cost Savings Modern electric vehicle
: The German national standard that defines the forms and dimensions of undercuts for technical drawings.
To appreciate why "E" is distinct, one must look at the other forms. The standard delineates four specific scenarios: