#9 x 1-1/2″ BTX Bronze T25 Flathead Screws

BTX™ #9×1-1/2″ Bronze Flat Head Screws

Engineered for Professional-Grade Performance

Big Timber’s BTX™ #9×1-1/2″ Bronze Flat Head Screws are built for professionals who need reliable and durable fasteners for their toughest projects. Manufactured from heat-treated, hardened steel and protected with a triple-layer bronze coating, these screws provide exceptional corrosion resistance, holding power, and long-term performance. Designed for exterior use and compatible with treated lumber, these screws are perfect for projects involving hard or soft woods, chipboard, and other challenging materials.

Top Features of Big Timber BTX™ Screws 

• Triple-Layer Bronze Coating for Corrosion Protection
  Offering 1200-hour resistance to ACQ and salt spray conditions, these screws ensure lasting durability in harsh outdoor environments.
• Self-Countersinking Flat Head with Cutting Nibs
  Each screw features a true flat head with under-head cutting nibs, allowing it to countersink smoothly and flush into the wood, delivering a clean, professional finish.
• T-25 Star Drive for Enhanced Torque
  The star drive design handles twice the torque of Phillips or square drives, reducing cam-out and extending bit life. This ensures a smoother installation and minimizes fastener damage.

Built for Maximum Efficiency and Strength

• Deep, Wide Threads and Knurled Shank
  The sharp, deep threads provide superior holding power, while the knurled shank reams the hole as the screw is driven, reducing drag on the tool and minimizing splitting.
• Spiral Notches and Type 17 Point
  Spiral notches cut through fibrous materials, lowering the torque needed to drive the screw without compromising holding power. The Type 17 notched point provides fast starts without “walking,” eliminating the need for pre-drilling.

Applications for Every Professional Project
These versatile screws are ideal for a variety of construction tasks, including wood framing, deck building, porches, lateral bracing, siding, and fencing. Whether laminating beams, girders, or engaging in general remodeling and repair, Big Timber BTX™ screws meet the highest standards of performance and durability.

Specifications & Available Quantities

• Available Quantities: 1 lb bucket, 5 lb bucket
• Product Weight: 1 lb, 5 lb
• Size & Length: #9 x 1-1/2″ with a T-25 star drive for secure installation

Big Timber Warranty
Big Timber guarantees that its products are free from material and manufacturing defects. Defective products will be replaced at no cost, but labor and installation charges are not covered under this warranty.

Tested and Trusted
Big Timber BTX™ screws are designed to provide consistent, reliable performance in professional construction environments. With corrosion-resistant coatings, superior engineering, and easy installation, these screws are built to handle whatever your projects demand.