TM 10-5411-207-14
3-9.
General Repair Procedures (cont).
(a) Drill through head of rivet only, using hole in rivet as a guide. Use
proper drill size as follows:
Rivet Size (in.)
Drill size
1/8
No. 30
5/32
No. 20
3/16
No. 11
1/4
1/4 inch
(b) Using a pin punch, pry off rivet head.
CAUTION
Do not punch rivet shanks out as you may damage the other side
of the panel.
(c)
Using pin punch, push out remainder of rivet shank. If shank will not
push out easily, drill it out.
b.
Rivnut Installation and Removal.
Rivnuts (threaded inserts) are tubular rivets with
internal threads and are used throughout the shelter wherever blind threads are required.
The types of rivnuts used in the shelter are shown in Figure 3-6 and described in Table 3-3.
Flat head rivnuts (style D and E) may be used wherever head thickness will not interfere with
installation of equipment.
Countersunk head rivnuts (style C) are used for flush installation.
Keyed rivnuts are used in locations which are subject to vibration and torque. Closed end riv-
nuts (styles C and E) must be used for exterior repairs and floor repairs to keep moisture and
dirt from entering panels.
Open end rivnuts (style D) may be used in areas where sealing is
not required.
Figure 3-6. Rivnuts (Threaded Inserts).
3-12
