C2 Clamp-Fix TX Woodscrews – Superior Clamping for Heavy Structural Timber
Extra heavy-duty yellow zinc woodscrews designed for structural timber and large joinery where maximum holding power is critical.
Engineered for Maximum Clamping. Trusted by UK Trades.
The C2 Clamp-Fix TX Woodscrews (8.0mm diameter) deliver unmatched clamping strength, with a twin-cut tip, reinforced double countersunk head, and TX drive for superior torque. Ideal for timber frames, large beams, post-and-beam structures, pergolas, and deep structural fixings where smaller screws won’t hold.
Trusted by UK trades, these large-diameter screws improve pull-out resistance, reduce splitting, and handle the loads needed for structural timber projects. View our full range of woodscrews for more options.
Why Choose 8.0mm Screws?
Choose 8.0mm screws for load-bearing timber frames, glulam beams, outdoor structures, roof trusses, and heavy-duty joinery. The increased diameter provides superior shear strength, clamping force, and pull-out resistance — critical for structural applications where strength and depth cannot be compromised.
Key Features
- Yellow zinc passivated coating provides internal corrosion resistance for long-term durability
- Twin-cut tip allows faster driving and reduced splitting in dense or thick timbers
- Double countersunk head with ribs ensures a flush finish even in structural applications
- TX drive (star drive) handles high torque loads, reducing cam-out and tool slip
- UK CA approved certified for structural timber applications
Trade-Focused Performance
Designed for structural timber, large-section joinery, heavy framing, and outdoor structures. The 8.0mm diameter and longer lengths provide the clamping power and pull-out resistance needed in glulam beams, large posts, decking frames, and multi-layered timber connections. For hardwoods or deep installs, use with our pilot drill bits.
Available Sizes
80mm, 100mm, 120mm, 150mm, 200mm, 225mm, 250mm, 275mm, 300mm, 360mm, 420mm – ideal for deep penetration into structural timbers, heavy framing, beams, and large timber joints.
Common Questions About Clamp-Fix Screws
Clamp-Fix screws are designed for heavy structural timber fixings and large joinery projects where maximum clamping strength and depth are required. The 8.0mm diameter is ideal for beams, posts, glulam, roof trusses, or large outdoor frames.
Pre-drilling is recommended for hardwoods or deep structural applications to reduce splitting and driving resistance, especially on lengths over 150mm.
TX (star) drive reduces cam-out, improves torque transfer, and provides better control on high-torque applications — critical for long screws driven into dense timber.
Clamp-Fix screws deliver higher clamping force, pull-out resistance, and torque handling than standard woodscrews. Their twin-cut tip, reinforced countersunk head, and TX drive provide better grip, less splitting, and faster installs. Large diameters like 8.0mm are essential for structural timber work requiring high load capacity and deep penetration.
Choose Your Size & Order Today
Select your preferred screw length and quantity above. Bulk discounts available for trade. Contact us for trade pricing or advice.