The Simpson Strong-Drive TB Wood-to-Steel Screw, #12 x 1-3/4 in., Black Phosphate, Straight Collated (1,000-Qty) is a structural fastener from Simpson engineered specifically for attaching wood to hot-rolled steel. Built for use with the Simpson Strong-Tie Quik Drive auto-feed screw driving system, it delivers fast, repeatable installation in high-volume applications such as wood nailers, ledgers, and truck bed flooring. The combination of a T30 6-lobe drive, a #4 drill point with wings, and tapping threads makes this screw a dependable choice for professional crews tackling structural wood-to-steel connections in dry, low-corrosion environments.

Key Features

• Straight collation - feeds consistently through compatible Quik Drive auto-feed systems, keeping installation fast and uninterrupted on production-volume jobs
• Flat head with nibs - the nibs allow the head to countersink cleanly without pre-drilling, producing a flush, professional finish in wood-to-steel assemblies
• T30 6-lobe drive - reduces driver-bit cam-outs compared to conventional drive styles, resulting in easier installation and less wear on bits
• #4 drill point with wings - drills through steel cleanly before tapping threads engage, lowering the torque required and reducing the chance of wood splitting at the surface
• Tapping threads at 14 TPI - thread directly into steel without a pre-tapped hole, cutting installation steps and saving time in the field
• Black phosphate coating - suited for dry, low-corrosion interior applications such as framing nailers and truck bed installations where moisture exposure is not a factor
• Driver bit included - the matching T30 bit ships with every pack, so crews can get to work without sourcing a separate accessory

Why This Product

• Designed for auto-feed efficiency - straight collation and compatibility with the Simpson Strong-Tie Quik Drive PROHSD60 and PROHSD60M systems mean installers can drive screws rapidly and consistently, making this fastener especially productive on large-scale wood-to-steel framing or truck bed flooring projects
• Engineered to cut through steel cleanly - the #4 drill point with wings handles steel penetration before the tapping threads take over, eliminating the need for pre-drilling and streamlining the entire fastening sequence
• Reduces installation errors and fatigue - the T30 6-lobe drive minimizes cam-out during high-cycle driving, keeping the bit engaged and reducing the hand fatigue and rework that come with stripped drive recesses
• Purpose-built for structural wood-to-steel connections - from nailers and ledgers to wood truck beds and trailer flooring, every design detail - collation type, drill point, thread geometry, and drive style - is matched to the demands of attaching wood directly to hot-rolled steel

Specifications

• MPN: TBP1245S
• Brand: Simpson Strong-Tie
• Screw Size: #12
• Length: 1-3/4 in.
• Head Type: Flat Head
• Head Diameter: 0.388 in.
• Drive Type: T30 6-Lobe
• Thread Type: Tapping Threads
• TPI: 14
• Point Type: #4 Drill Point with Wings
• Collation Type: Straight
• Coating/Finish: Black Phosphate Coating
• Compatible Tools: Simpson Strong-Tie Quik Drive PROHSD60 or PROHSD60M auto-feed screw driving systems
• Quantity: 1,000

Approved Applications

• Fastening Wood-to-Steel - Nailers and Ledgers
• Installing wood truck beds onto hot-rolled steel frames

What's Included

• 1,000 Simpson Strong-Drive TB Wood-to-Steel Screws (#12 x 1-3/4 in., Black Phosphate, Straight Collated)
• T30 driver bit

Frequently Asked Questions

What auto-feed driving systems are compatible with the TBP1245S?

The TBP1245S is designed to install with the Simpson Strong-Tie Quik Drive PROHSD60 or PROHSD60M auto-feed screw driving systems. Its straight collation ensures smooth, consistent feeding through these tools for high-volume applications.

What type of coating does the TBP1245S have, and what environments is it suited for?

The TBP1245S features a black phosphate coating. This coating is intended for dry, low corrosion applications. It is not recommended for exterior, high-moisture, or chemically aggressive environments.

What is the purpose of the #4 drill point with wings on this screw?

The #4 drill point with wings is designed to drill cleanly through steel before the tapping threads engage, reducing the torque required during installation and helping prevent wood from riding up the shank. This makes it well suited for fastening wood to hot-rolled steel substrates.

Can the TB Wood-to-Steel screw be used without the Quik Drive auto-feed system?

Yes. While the TBP1245S collated format is optimized for the Simpson Strong-Tie Quik Drive auto-feed system, the TB Wood-to-Steel screw is also available in bulk format for hand-drive fastening applications.

Note: Product dimensions and/or thread length may differ from picture. Please see the item description and specifications above for exact product details.