OlyLog is the first threaded log home fastener which requires no predrilling and is ACQ approved.

In many areas of the country you may need a engineer to determine the correct spacing for the Oly Log screws in you log walls.

Anecdotally, spacing will normally run from as close as 9″”-12″” around openings to 36″” in solid wood wall areas. Don’t take this as gospel, however it gives you a starting point for your preliminary estimating.