Originally Posted by
lostforawhile
since I wont be leaving it long, I guess I'll stcik with this one, I know I will be replacing a number of fasteners on the bike with security torx or allen head screws, most people dont carry those types of tools
Bike thieves often carry allen keys.
If it is a fastener you seldom adjust, and never need to adjust or repair on the road - water bottle bolts, seatpost binder, etc - just install an allen head bolt and use a large drill bit to remove the flats from the head. If there is an exposed nut ont he other side (as with some seatpost binders), grind the wrench flats off to a round taper so you cannot grab it with pliers.
You would be surprised how fast a cable lock can be cut.