Oh man, I forgot about these. They gained popularity for attaching ledger boards but now they make a full line if these slim brutes. I had a difficult project, attaching support/extension blocks in an stairwell to add a second handrail. I used these new style screws in something like 6" length and they worked fantastic. Rock solid with a small footprint, and the built in washer on the low profile head looks good on finish work too! Definitely worth a couple bucks more, saving a lot of time and great results.Along with Torex head screws, Simpson ‘Ledger Locks’ beat the heck out of lag bolts and depending on the size are available in torex or hex heads.
I don’t worry so much about the fastener cost it’s the speed, convience,and predictably that counts.
GEK is the brand I like the best for wood and deck screws.
B. John