FastenMaster Deck Screws & Hidden Fasteners

FastenMaster is an American manufacturer offering innovative screw and fastener products. The most popular FastenMaster products lines include Cortex for Deck and Cortex for Trim. The FastenMaster Lok line of structural wood screws including FlatLok, HeadLok, LedgerLok, ThruLok and TimberLok are known by contractors for their strength and reliability. Build with confidence and get the job done right using FastenMaster products.

Cortex Hidden Fastening

The FastenMaster Cortex Hidden Fastening System for decks and trim is perfect for hiding deck screws in composite, pvc, and capstock decking or trim. Choose from Cortex for Trex, Collated Cortex for Azek Trim, Cortex for TimberTech Decking, and more.

LOK Line

The FastenMaster LOK line consists of 6 types of multi-purpose fasteners. FlatLOK is used to attach multi-ply LVL and girder trusses. HeadLOK is for cabinet, stair stringer, and deck framing installations. LedgerLOK is for fastening deck ledger boards to the rim joists of a house. ThruLOK acts as a through-bolt replacement for multi-ply beams, deck posts, carrying beams, and more. TimberLOK is to attach rafters or trusses to top plates, landscape timbers, fences, decks, headers, or stair stringers.

Deck Screws

Quality exterior screws are essential for a clean deck installation. Use TrapEase 3 color-matched screws for composite or PVC decking and GuardDog exterior wood screws for pressure-treated decking.

Specialty Products

FastenMaster has screws for every application. Use 7" GutterScrews to replace old spikes and the OlyLog Screws or LogHog Screws for your log home. There is also a Fastenmaster LTS lateral load resistance system for transferring the load of an attached deck. Make installations quicker and easier using FastenMaster tools like FrameFAST or PAMFast. FrameFAST attaches trusses and rafters to top plates, while PAMFast assists in a variety of installations including subfloor, decking and drywall.