Quality and safety have top priority by all fasteners! We at GRAEWE Tadiv are aware of this responsibility. By careful selection of suppliers, strict incoming inspection of materials, professional tool design, computer-aided monitoring of the production and final tests, qualified and trained staff and continual investment in our machines and equipment, we can guarantee your high quality demands.

Our quality management meets highest international requirements and in addition to the DIN EN ISO 9001: 2015 it is even certified after the leading quality standard in the automobile industry, the ISO / TS 16949. We also meet the requirements according to AD-Merkblatt W0 / TRD.

Our products can be verified with certificates according to EN 10204. Separate inspections are also possible. In our own laboratory we carry out following tests:

  • hardness test HV / HB / HR
  • surface hardness test HV0,1-1
  • tensile test according to EN 6892-1 (600 kN)
  • Charpy impact test according to DIN EN ISO 148-1 up to -60 °
  • friction test according to DIN EN ISO 16047 / VDA 235-101 up to M36
  • inspection of the structure
  • chemical analysis
  • surface crack testing according to DIN EN ISO 9334
  • salt spray test according to DIN EN ISO 9227 standard