FlatLok is designed for various multi-ply dimensional and engineered wood connections. FlatLok is approved for single-sided installation. Not intended for use on exterior deck ledgers， FastenMaster LedgerLok is designed specifically for this application.

• Brand Name: FastenMaster
• Sub Brand: FlatLok
• Callout Size: No. 14
• Length: 4 in.
• Drive Style: Torx Ttap
• Finish: Epoxy
• Product Type: Wood Screws
• Number in Package: 50 pk
• Indoor or Outdoor: Indoor and Outdoor
• Thread Type: Coarse
• Material: Carbon Steel
• Packaging Type: Boxed
• Head Type: Flat Head
• Self Drilling: Yes