ETS-Lindgren HI-6153 Electric Field Probe - Manual (Page 82)

82 | Probe Shield Care and Replacement
4. Replace the screws snugly without over-tightening them.
Over-tightening the screws may damage the screw heads. If you
require additional nylon screws, you may order them from
ETS-Lindgren or obtain them locally. Non-conductive screws must be
used for this application. Never use metal screws.
5. Repeat this procedure for the other shields, if necessary.