FastenMaster FMTHR614-24 ThruLOK 6-1/4" Through-Bolt Replacement Screw | 24 ct Box

Fastenmaster FMTHR614-24

•Replaces 1/2" Carriage & Through-Bolts - Engineered for multi-ply beams, girder trusses, deck posts, and structural wood-to-wood connections
•No Predrilling Required - Installs fast and clean without the slow, labor-intensive steps of traditional bolt installation
•Faster & Easier Installation - No drill bits, washers, nuts, or wrenches needed - drives with standard tools
•Galvanized & ACQ-Approved Coating - Meets building code requirements for treated lumber and exterior framing
•IBC/IRC Code Compliant - Tested and supported by engineering data conforming to ICC-ES ESR-1078

•Lifetime Performance Guarantee - Structural strength and corrosion resistance guaranteed for the life of the project when installed per FastenMaster guidelines

Fastenmaster FMTHR614-24

FastenMaster ThruLOK is a multi-purpose structural wood-to-wood fastener engineered to replace traditional 1/2" carriage bolts and through-bolts in deck framing, multi-ply beams, girder trusses, and structural post connections. Designed for speed and simplicity, ThruLOK installs without predrilling, without drill bits, and without wrenches, delivering a dramatically faster and easier fastening solution for contractors.

ThruLOK provides code-compliant performance backed by ICC-ES ESR-1078, ensuring reliable structural capacity in treated lumber and exterior framing applications. Its galvanized, ACQ-approved coating meets building code requirements for use in pressure-treated wood, while the lifetime performance guarantee ensures long-term durability when installed according to FastenMaster guidelines.

By eliminating the slow, multi-step process of installing carriage bolts, ThruLOK reduces labor time, improves consistency, and delivers professional-grade results across a wide range of structural wood-to-wood connections.