Hex No.5 S/Drill Screw 5.5 x 38 Box 100

The Hex No.5 S/Drill Screw by T I Midwood & Co Ltd is a high-performance fastening solution designed for industrial applications. This self-drilling screw features a diameter of 5.5 mm and a length of 38 mm, making it ideal for attaching metal to heavy section steel, metal roofing, cladding, and in various HVAC and electrical installations.

Crafted from case and core hardened carbon steel, this screw is finished with a silver organic exterior grade coating for enhanced corrosion resistance, rated for 500-1000 hours in salt spray tests. Its external hex drive type facilitates easy installation, while the bonded EPDM washer ensures a secure seal, making it suitable for both trade professionals and DIY enthusiasts.

Specifications

Type: Self-drilling screw
Diameter: 5.5 mm
Length: 38 mm
Head Type: Hexagon Head
Drive Type: External Hex (5/16' / 8mm)
Drill Point: Self-Drilling No.5
Material: Case & Core Hardened Carbon Steel
Finish: Silver Organic Exterior Grade Coating
Corrosion Resistance: 500-1000 hours salt spray (Corrosion Rating 3)
Washer Type: Bonded EPDM Washer (typically 16mm)
Maximum Drilling Capacity: Up to 12mm thick steel
Quantity per Box: 100
Application: Attaching metal to heavy section steel, metal roofing, cladding, steel construction, industrial projects, HVAC, electrical installations

Key Features

• Self-drilling capability for fast installation
• Robust construction from hardened carbon steel
• Excellent corrosion resistance
• Includes bonded EPDM washer for effective sealing
• External hex drive for reliable torque control