Attaching Lexan® and Plexiglas®

Nils Eyton, Chapter 222, Sweden

Originally published May 1997

At the 21 January meeting, Russ said that Lexan® or Plexiglas® easily breaks when screws work on it when fitting it. Not so if you use good fitting procedure: Countersink the hole, use a Tinnerman washer, and a larger hole than the screw. It is often easier to countersink first, then drill the center hole. The screw never works directly on the glass. (Be sure to also avoid scratches at all costs--scratches create stress concentrations that lead to cracks.)


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Revised -- 20 December 1997