High performance all-purpose self-countersinking screw for fast accurate driving into softwood, ch...High performance all-purpose self-countersinking screw for fast accurate driving into softwood, chipboard and most hardwood. Features 2 patented slots to prevent splitting close to the edge, and ribs & tucks to enable flush fitting without surface damage. The waxed thread and zinc and yellow passivated coating provide up to 20x more rust resistance than standard BZP screws. Designed with a 20-degree needle point that is sharp enough to penetrate almost all timbers without the need for a pilot hole. The wide, deep thread is designed to reduce driving resistance by up to 40%, requiring less torque for faster completion. Ribs and tucks ensure a flush fitting without surface damage. Reinforced collar prevents snapping and provides depth. Sharp, wide, and deep thread reduces driving resistance, requiring less torque. 20-degree needle point penetrates wood easily without a pilot hole. Two patented slots prevent splitting when screwing close to the edge. Zinc and yellow passivated coating offers up to 20x more rust resistance than standard BZP screws.
This guide is for anyone using Reisser Cutter Pozi Screws. These screws are designed for fast and accurate driving into various materials, offering excellent rust resistance and reducing the risk of wood splitting. However, optimal performance depends on using the correct screw size and applying appropriate torque. This guide will cover everything you need to know about these screws.
All features
Colour
Gold
Model Part Number
8221S220600702
Brand
Reisser
Extended Product Information
FAQs
What is the benefit of the Cutter design?
The cutter design reduces the effort needed for driving the screw, and minimizes the risk of splitting the wood.
What kind of screwdriver bit do I need?
You need a Pozidriv (PZ) bit. The size of the bit should match the screw head size.
Do I need to pre-drill holes?
Pre-drilling is not always necessary due to the screw's sharp point, especially in softwood and chipboard. However, it's recommended for hardwoods and when working near edges to prevent splitting.
Can I use these screws outdoors?
Yes, the zinc and yellow passivated coating provides excellent rust resistance, making them suitable for many outdoor applications. However, exposure to extreme conditions can still cause degradation over time.
What materials can I use these screws with?
These screws are suitable for use with softwood, chipboard, and most hardwoods. They can also be used with some plastics.
How do I choose the correct screw length?
The screw length should be approximately 2.5 to 3 times the thickness of the material being fastened. This will ensure a secure hold without protruding from the other side.
What is the advantage of the needle point?
The 20-degree needle point allows for easy penetration of the material without the need for pre-drilling.
What causes the screw head to strip?
The screw head may strip if you use too much torque, use the wrong size screwdriver bit, or if the bit isn't fully engaged.
Troubleshooting
Screw head stripping
Reduce driving torque. Use the correct size Pozidriv bit and ensure it's fully engaged with the screw head. If the screw is already stripped, try a larger screw or fill the hole with wood filler and re-drill.
Wood splitting
Pre-drill pilot holes, especially when near edges or working with hardwoods, despite the screw's design to prevent splitting. Ensure the correct screw length is used. Reduce the driving speed and torque.
Screw not countersinking properly
Ensure the screw is perpendicular to the surface. Check that the screwdriver bit is fully engaged and applying sufficient pressure. If needed, slightly enlarge the countersink hole with a countersinking drill bit.
Screw is difficult to drive
Ensure you are using the correct size screw for the material. Pre-drill, especially when working with hardwoods. Check for any obstructions in the hole.
Pros and Cons
Pros
Reduces wood splitting, especially near edges.
Requires less torque for faster driving.
Offers excellent rust resistance.
Self-countersinking design for a flush finish.
Suitable for a wide range of materials.
Cons
Requires appropriate torque to avoid stripping.
May require pilot holes in very dense hardwoods.
Not ideal for extremely thick materials where longer screws are needed.
Setup, Compatibility & Care
Selection: Choose the correct screw size (diameter and length) for the material and application. Refer to the packaging for guidance.
Tools: Use a Pozidriv (PZ) screwdriver bit that matches the screw head. An impact driver is recommended for faster driving, but a standard drill/driver will also work.
Driving: Apply consistent pressure and the correct torque. Avoid over-tightening to prevent stripping the screw head or damaging the material. The self-countersinking design should allow the screw head to sit flush.
Compatibility: These screws are compatible with most common woodworking materials like softwood, hardwood, and chipboard. They can also be used with some plastics. Ensure the screw length is appropriate for the material's thickness.
Care: Store screws in a dry place to prevent rust. If screws get wet during use, wipe them down before use. The zinc and yellow passivated coating is designed for corrosion resistance, but harsh chemicals should be avoided.