How and where to use guide
A500705-ST-B Ulti-mate II Professional Woodscrew PoziSquare Double Csk Z & Y 5mm X 70mm - (10g) - 200 Box
Typical applications and where to use
These 70mm screws are best suited to fixing components into solid timber sections, including hardwoods and engineered boards. They work particularly well for securing hinges, brackets, and hardware fittings where the longer length provides excellent holding power. The absence of ribs on the shank makes them especially suitable for use with hinges and fittings, allowing clean installation without interference. They are also appropriate for structural timber connections, framing work, and any application requiring a substantial fastening into wood where corrosion resistance is beneficial.
- Hinges, brackets, and hardware installation
- Structural timber connections and framing
- Cabinet making and quality joinery
- Fixing into solid timber sections and engineered boards
- Applications requiring 70mm penetration depth
Driving and installation technique
The quick start point allows rapid initial penetration with minimal force, reducing operator fatigue and improving productivity on site. Use a pozisquare or PZ driver bit for optimal results; the self-centering recess will also accept PH drivers if necessary. The anti-camout technology ensures the bit remains engaged throughout driving, preventing the common problem of bit slip that damages both screw and workpiece. Apply steady, controlled pressure rather than excessive force. The reinforced double angle head will self-countersink into timber, creating a neat finish without the need for pre-drilling in most applications, though pre-drilling is recommended in hardwoods or near timber edges to prevent splitting.
- Use pozisquare or PZ driver bits for best results
- Apply steady, controlled driving pressure
- Benefit from quick start point for rapid initial penetration
- Pre-drill in hardwoods and near edges to prevent splitting
- Head self-countersinks for neat finish
Corrosion resistance and maintenance
These screws are zinc yellow plated, providing reliable corrosion resistance suitable for most interior and protected exterior applications. The plating protects against rust and oxidation, ensuring longevity in typical UK building conditions. No special maintenance is required once installed. For applications in particularly harsh or wet environments, consider whether additional protection or stainless steel alternatives might be more appropriate, though the zinc plating is adequate for standard joinery and general woodworking use.
- Zinc yellow plating provides corrosion resistance
- Suitable for interior and protected exterior use
- No maintenance required after installation
Limitations and on-site considerations
The 70mm length is substantial and should not be used in thin timber sections where the screw would protrude through the opposite face or where over-penetration could damage underlying components. The slotted shank design is engineered to reduce splitting, but this benefit is most effective when screws are not driven at excessive angles or with excessive force. Ensure adequate spacing between fasteners to prevent cumulative splitting effects. Store in dry conditions to maintain the zinc plating. The box contains 200 screws, so plan quantities carefully for larger projects to avoid wastage or shortages.
- Not suitable for thin timber sections
- Avoid excessive driving force or angled installation
- Maintain adequate spacing between fasteners
- Store in dry conditions to preserve plating
- Plan quantities carefully from 200-screw box