TB 43-0218
4. Fastener Grade. In addition to being classified by thread type, threaded fasteners are also classified by material. The
most familiar fastener classification system is the SAE grading system.
Figure 2. SAE Screw and Bolt Markings
Note:
Torque values for Grade 8.2 bolts are the same as for Grade B.
Figure 3. Markings On Hex Locknuts
3
Previous Page
