so..adding a right taillight to a 60/A might be a little tricky?
Hold the bracket where it should be with these in the holes - give it a smack and presto you know where to drill. These are for wood and will last for awhile. There are also threaded one for holes with threads and single long ones - to use those you'd punch and drill the first hole then bolt it one and do the second hole once it was bolted on again do the third hole......... Measure 4 or 5 times and drill once.