12 X 2-1/2” Wood-Steel Self Drilling Screw, 1lb (53pcs) T25

Description

Overview

The BIG TIMBER 12 x 2-1/2″ Wood-Steel Self Drilling Screw (1FHD12212) is designed for fastening wood to steel applications requiring high tensile strength, corrosion resistance, and self-drilling capability through metal substrates.

Technical Features

• Heat-treated steel construction delivers high tensile strength and superior shear resistance for structural wood-to-steel connections.
• T25 Torx drive handles 2x the torque of Phillips or square drive configurations, reducing cam-out and extending driver bit service life.
• Self-drilling tip with up to 1/4″ metal drill capacity eliminates the need for a separate pilot hole through metal at a recommended speed of 2,000 RPM, streamlining installation.
• Deep chip cavity collects metal shavings generated during drilling to prevent interference with thread engagement and maintain clean, consistent cuts.
• Metal reaming wings on shank ream out the wood substrate as the screw advances, then break off upon contact with metal, preventing the screw thread from prematurely engaging the wood and ensuring a tight, flush connection between materials.
• Triple-layer bronze corrosion-resistant coating ACQ compatible, providing protection against treated lumber chemicals and environmental moisture exposure.

Applications

• Wood-to-steel framing and structural attachment where self-drilling capability through metal is required.
• Deck, ledger board, and metal track installations using ACQ-treated lumber.
• Light steel framing projects where a pre-drill step would otherwise be required.
• Applications demanding high shear and tensile load performance at the wood-metal interface.