300 mm Hex Head Timber Screws – Ultra-Heavy-Duty Structural Fixings

The 300 mm Hex Head Timber Screw is an ultra-heavy-duty fastener engineered for the most demanding structural timber applications. Designed for maximum penetration, exceptional strength, and long-term reliability, these screws are ideal for large-scale outdoor construction, landscaping, and projects requiring deep, secure fastening into thick timber sections.

Features

• Large hex head for secure drive using a wrench or hex driver
• Ultra-heavy-duty steel construction for structural reliability
• Corrosion-resistant coating suitable for long-term outdoor exposure
• Deep, aggressive threads for superior grip in hardwood, softwood, and treated timber
• Ideal for securing very thick timber, retaining walls, beams, and sleepers
• Smooth driving action with reduced splitting, even in dense timbers

Ideal For

• Structural timber framing and heavy outdoor builds
• Retaining walls, sleepers, beams, and garden structures
• Landscaping and groundworks requiring deep, secure fastening
• Professional builders, carpenters, and high-strength construction tasks

Technical Specifications

• Size: 300 mm length
• Head Type: Hex head
• Material: High-strength steel with corrosion-resistant coating
• Drive Type: Hex / wrench
• Application: Structural timber fastening, landscaping, outdoor construction

Why Choose 300 mm Hex Head Timber Screws?

These screws deliver extreme holding strength, deep penetration, and outstanding weather resistance—making them essential for large timber structures and heavy-duty outdoor applications. Built for performance and reliability, they are trusted for the toughest professional installations.