[bobo5195]

I believe the point bill is that a screw thread can apply an awful lot of force and that alternating loads will cause failure at much lower loading values than being hit by the hammer. For plastics I would say that screw loading is more destructive than hammer loading. The combination of plastics, warm water and additives, dynamic loading, temperature loading, possible manufacturing defects and a stress concentration MAY cause something.

Given the testing that gabe has undertaken I would say that the above concerns are valid but don’t match reality (ie don’t worry). The broken wb (orkans) is probably a 1 in million chance from something or other. If more start popping up then there maybe a problem. Not specifying a nice radius is abit of school boy error, but its not catastrophic and you could make a point for its inclusion as a matter of aesthetics. Either way looks like there is nothing in this.