Fixing and buying guide

What this product is and who it is for

The Ulti-Mate II is a professional-grade woodscrew engineered for both trade and DIY applications. The double countersunk head sits flush with the surface, making it ideal for visible joinery and finishing work. The PoziSquare recess combines Pozidriv and square drive features for reliable bit engagement. This screw is particularly suited to users who value speed and efficiency on site or in the workshop, especially when using cordless drivers where battery life matters.

Compatibility and applications

These screws work across a wide range of materials. Use them for hardwood and softwood joinery, cabinet making, and general carpentry. They are equally effective in man-made boards such as MDF, plywood, chipboard and OSB, making them versatile for flat-pack assembly, shelving and structural boarding. The screw can also be used for light sheet metal fixing. The 4mm diameter and 40mm length suit general-purpose fastening in timber up to approximately 35mm thick when fixing into solid wood.

• Hardwood and softwood joinery
• MDF, plywood, chipboard and OSB
• Sheet metal applications
• Cabinet and furniture assembly

Pack contents and sizing

Each tub contains 1000 screws, providing substantial quantity for trade and larger DIY projects. The 8 gauge (4mm) diameter with 40mm length is a mid-range size suitable for most general carpentry and board fixing. A high-quality Stick-Fit driver bit is included in every box, eliminating the need to source a separate bit and ensuring compatibility with the PSD recess design.

• 1000 screws per tub
• 8 gauge, 4mm diameter, 40mm length
• Stick-Fit driver bit included
• Double countersunk head for flush finish

Pre-installation checks and driving tips

Before use, ensure your cordless driver or screwdriver is in good condition and the battery is fully charged. The sharp point allows you to drive without pre-drilling in most softwoods and boards, saving time. For hardwoods or dense materials, consider a pilot hole to prevent splitting. The Stick-Fit connection means the screw will remain attached to the bit during one-handed driving, improving efficiency on site. Ensure the PoziSquare bit is fully seated in the recess before applying pressure to avoid cam-out and bit damage.