Optimaxx High Performance Countersunk Wood Screw 3.5 x 20mm

Summary

The Optimaxx 3.5 x 20mm countersunk wood screw is a high-performance, self-drilling and self-countersinking fastener designed for professional timber joinery and general woodworking applications. Finished in yellow zinc passivated (ZYP) for corrosion resistance, it is fully threaded along its length to maximise pull-out strength and holding power. Ideal for joiners, carpenters and site fixers who demand a reliable, premium-quality screw.

Features

• Self-drilling point for fast, clean entry into timber without pre-drilling
• Self-countersinking head sits flush with the work surface for a neat finish
• Fully threaded shank for maximum pull-out resistance
• Yellow zinc passivated (ZYP) finish for corrosion protection in general internal and external applications
• Countersunk (CSK) head profile for flush or below-surface fixing
• High-performance thread form for excellent grip in softwood, hardwood and engineered timber
• Suitable for use with Pozi or compatible driver bits

Specifications

• Brand: Optimaxx
• Diameter: 3.5mm
• Length: 20mm
• Head Type: Countersunk (CSK)
• Thread: Fully threaded
• Finish: Yellow Zinc Passivated (ZYP)
• Material: Steel
• SKU / Part No: C288-310

What's Included

• Optimaxx 3.5 x 20mm CSK wood screws (quantity as per pack size selected)