SAEITC TS137-4

1 SCOPE
2 ASSOCIATED SPECIFICATIONS
3 DEFINITIONS
  3.1 Production batch
  3.2 Inspection lot
  3.3 Discontinuities
  3.4 Test temperature
  3.5 Simple random sampling
  3.6 Critical defect
  3.7 Major defect
  3.8 Minor defect
  3.9 Sampling plan
  3.10 Limiting quality
  3.11 Acceptable quality level
  3.12 Finished nut
  3.13 Definition document
4 CERTIFICATION AND QUALITY ASSURANCE
  4.1 Qualification
  4.2 Acceptance
  4.3 Quality system certification
  4.4 Responsibility for inspection and tests
  4.5 Inspection and test report
5 Table 1: Technical requirement and test methods
  5.1 Materials
  5.2 Dimensions
  5.3 Manufacturing
  5.4 Mechanical properties
  5.5 Metallurgical properties
  5.6 Vibration test
  5.7 Impedance test
  5.8 Production identification
  5.9 Delivery
Table 2: Material removal
Table 3: Qualification testing requirements for bolt
         samples
Table 4: Summary of tests - Qualification and production
         acceptance
Table 5: Tensile, double shear strength, vibration,
         insertion and removal forces
Table 6: Classification of defects
Table 7: Sampling plans for visual inspection and
         dimensional characteristics
Table 8: Sampling plans for the inspection of mechanical
         and metallurgical characteristics
Table 9: Thread discontinuities - maximum depth of
         permissible faults
Table 10: Variable sampling for tensile tests
Table 11: Wear test limits
Figure 1: Head structure and grain flow
Figure 2: Distortion in fillet area
Figure 3: Grain flow in head
Figure 4: Non-permissible laps, seams and surface
          irregularities
Figure 5: Permissible laps, seams and surface
          irregularities
Figure 6: Crest lap imperfections
Figure 7: Metallurgical specimens
Figure 8: Vibration test fixture
Figure 9: Insertion and removal test fixture
Figure 10: Wear test fixture
Appendix 1: Code symbols for manufacturers of SR bolts
Appendix 2: Limitations of liability

Covers the technical, qualification and quality assurance requirements for self retaining 'impedance type' bolts in DTD 5638 or EN 2952/EN 3219 with rolled threads.