Hex No.3 S/Drill Screw 5.5 x 32 Box 100

The Hex No.3 S/Drill Screw by T I Midwood & Co Ltd (TIMco) is a high-performance self-drilling screw designed for versatile use in construction and fabrication. With a diameter of 5.5mm and a length of 32mm, these screws are ideal for various applications, particularly in light section steel, where they can drill through materials up to 5.0mm thick.

Crafted from case and core hardened carbon steel, this product features a silver organic finish that enhances corrosion resistance, providing up to 500 hours of protection in salt-spray tests, compliant with BS EN 9227 standards. Suitable for both trade professionals and DIY enthusiasts, these screws offer reliability, ease of installation with their hex head and self-drilling point design, and ensure durability in outdoor conditions.

Specifications

Type: Self-Drilling Screw
Diameter: 5.5mm
Length: 32mm
Quantity: Box of 100
Material: Case & Core Hardened Carbon Steel
Finish: Exterior (Silver Organic) / Silver Ruspert
Corrosion Resistance: 500 hours salt-spray (BS EN 9227 compliant)
Corrosion Rating: 3
Max Drilling Thickness: 5.0mm (Light Section Steel)
Washer Type: 12mm Fixed Washer (often with EPDM washer)
Socket Size: 8mm
Drill Tip Length: 8mm
Effective Thread Length: 17mm
Thread Type: 60° Self-Tapping
Threading: Fully Threaded

Key Features

• Self-drilling design for efficient installation
• Hardened carbon steel construction for superior strength
• Corrosion-resistant finish for prolonged outdoor use
• Hex head style for easy socket engagement
• Includes a fixed washer for improved sealing