Timco 5.5x85mm Timber to Metal Screws, Self-Drilling, 100-Pack

The Timco 5.5x85mm Timber to Metal Screws are engineered for secure and efficient fastening of wood to light metal sections (max. 5mm thickness). Featuring a coarse self-tapping thread with wing-tip design, these screws ream out the timber, allowing them to achieve maximum RPM without burning out. The wings break off upon contact with the metal, enabling the thread to self-tap smoothly.

Key Features:

• Durable Exterior Coating: Silver organic plating provides excellent corrosion resistance, enduring up to 500 hours in salt-spray tests—ideal for outdoor applications.
• Hardened Carbon Steel Construction: Case and core hardened for superior strength and durability.
• Efficient Design: Countersunk head with ribs ensures a flush finish, while the No.3 self-drilling point eliminates the need for pre-drilling.
• Versatile Compatibility: Suitable for timber sections between 44mm and 63mm in thickness.

Specifications:

• Thread Diameter: 5.5mm
• Total Length: 85mm
• Effective Thread Length: 61mm
• Max Drilling Thickness (Metal): 5.0mm
• Head Type: Countersunk with ribs
• Recess Type: Phillips
• Finish: Silver Organic (exterior-grade)

Perfect for fencing, decking, cladding, and other outdoor projects where wood-to-metal fixation is required.