Flat Head
Structural Wood Screw
LedgerLOK®: Flat Head Wood Screws - Deck Ledger Board Fasteners
Ledger LOK Flat Head Family Simulated
Ledger LOK Flat Head 005 Components copy
Ledger LOK Flat Head angled view copy 2

LedgerLOK Flat Head is 1/2" lag bolt replacement fastener that combines the single step installation of LedgerLOK with an attractive flat head design featuring TORX ttap.

No Pre-Drilling Required

Installs in a fraction of the time versus traditional lag bolts with fewer steps and less effort.

Flat Head with TORX ttap Drive

The flat head installs flush to the ledger saving additional time and money. Plus, gain stronger bit engagement with the TORX ttap drive system.

ACQ Approved & Code Compliant

Tested and supported by engineering data that conforms to the most current ICC standards. It is also approved for use in ACQ or treated lumber.

Ledger LOK Flat Head angled view copy 2

LedgerLOK Flat Head Structural Wood Screw

FastenMaster LedgerLOK vs. 1/2" Lag Screws

Product Brochures

Evaluation Reports

Technical Bulletins / Installation Guides

Part Numbers

 3 5/8"  Single FastenerFMLLF358-INDY
12 pc clamshell  FMLLF358-12
50 pc boxFMLLF358-50
250 pc bucketFMLLF358B-250
 5"  Single FastenerFMLLF005-INDY
12 pc clamshell  FMLLF005-12
50 pc boxFMLLF005-50
250 pc bucketFMLLF005B-250