Free Shipping

on orders over $99

Worry-free Returns

365 day return policy


Saving you installation time and money, the LedgerLOK Flat Head Screw is a code-compliant structural wood screw specially engineered to securely attach a deck ledger board to the rim joist of a house without the typical pre-drilling required. Featuring a TORX® ttap® drive for strong bit engagement and a wide, washer head that allows the screw to be driven flush into the ledger surface. LedgerLOK Flat Head Structural Wood Screws are crafted from epoxy-coated steel and guaranteed not to rust or corrode for the lifetime of your project. While ACQ approved for use in treated lumber, LedgerLOK Flat Head Fastener is not recommended for saltwater applications.

LedgerLOK Flat Head Deck Ledger screw are offered in a 3-5/8 inch length for single ledger attachment and a 5 inch length for double ledger applications.
Available in a packs of 50 and 250 to complete your outdoor project as needed.


DecksDirect # 7319

Installation Instructions (156 KB) 

FastenMaster LedgerLok Warranty (119 KB) 

ICC-ES Evaluation Report (926 KB) 

Technical Evaluation Report (955 KB) 

Drive TypeTORX® ttap®
Head TypeFlat
Screw Length3-5/8 in and 5 in
Screw Size1/4 in
Material TypeSteel with 3 layer epoxy coating
Pack Size50 pack and 250 pack
Package Contents50 pack: (50) LedgerLok fasteners
250 pack: (250) LedgerLok fasteners
WarrantyLedgerLok Guarantee of Performance
OtherNot designed for use in masonry or concrete
Acrylic Adhesive Flashing Tape by G-Tape
Starting at: $22.99
Simpson Strong-Tie Z-Max Post to Beam Brackets
Starting at: $4.99
Ipe Clip Extreme Hidden Deck Fastener by DeckWise
Starting at: $81.95
RSS Rugged Structural Screws By GRK Fasteners - 3/8 in x 6 in - 50 Pro Pack
Starting at: $21.99
Simpson Strong-Tie SDWH Hex Head Structural Screw
Starting at: $48.99
ThruLOK Screw Bolts By FastenMaster - 6-1/4 in - 24 pack - Packaging
Starting at: $34.99
HeadLOK Screws By FastenMaster - 2-4/8 in - 50 pack - Packaging
Starting at: $15.99
H23 Ledger/Multipurpose Structural Wood Screws by Starborn
Starting at: $20.38
Starborn Structural F23 Multipurpose Screw
Starting at: $17.00

Reviews & Questions