Review on 🛠️ Enhance Construction Efficiency with FastenMaster FMTLOK04 12 TimberLOK Heavy Duty 12 Count by Kham Fisk

They are great. I used these short ones mostly for hinges, but for the longer ones on the roof I had to sink some of these into the head. It wasn't fun until I figured out the trick - use a square bottomed chisel (bore or hardwood forstner) and then countersink it. A countersink big enough to bury the head means you won't be able to attach the head as there will be a flat head over the corner. This compression may not be important for a rough softwood construction, but when you attach hardwood for optics it becomes an issue).