How Would You Lock This Bolt?

[wyn]

Allen screw because easier to drill. Unless there's some trick it's beyond me to drill through the corner of a hex bolt head.

Drill a bit of a "divot" with the flat of the hex at 90* to the drill. Then turn the head of the bolt so you start in the "divot" and go through the corner.

I used to drill lots of bolts/nuts like this for lockwire on MX bikes.

 

[aesmith]

Cheers, will try that.