TM 1-1500-204-23-11
Figure 7-18. Basic Repair Joints (Bolted)
a. Fastener Considerations. A common miscon-
and patch by shear forces as the fasteners contact
ception is that the purpose of the fasteners is to
the loaded structure and the plate at the edge of
hold the patch in place. The fasteners do provide
the fastener hole. These forces are transferred more
clamp-up between the plate and the part surface,
eficiently with tighter fastener hole tolerances. For
but their primary purpose is to allow the load to be
fastener holes other than interference it fasteners, a
transferred from the original part surface through the
delection in the structure and plate is required for
patch. This load is transferred through the fasteners
the fasteners to contact the loaded structure and the