Review on Efficient FastenMaster FMLL358B LedgerLOK Fastener - 250 Count for Ultimate Ledger Attachment by Dustin Gabrielle

. Please note the name is LedgerLOK and they were made to attach Ledger boards to your house when building a patio. However, they are a versatile product that can be used for many applications. They are approved as a replacement for 3/8" bolts in most regions. Pre-drilling is not necessary. I use a Milwaukee M18 impact wrench and it's powerful enough to cut through tough wood. Some low torque impact wrenches can have screw problems. I have been using these screws for over 3 years. I'm just a reputable handyman and carpenter (nonprofit)