Timco Heavy Duty Hex Screws with EPDM Washer, Silver Organic, 5.5x100mm (100pc)
Timco’s corrosion-resistant hex screws (5.5x100mm) with EPDM washer for heavy steel. No pre-drilling needed – ideal for exterior use.
The Timco Heavy Duty Hex Screws with EPDM Washer are premium quality self-drilling screws designed for attaching metal to heavy section steel up to 12mm thick without pre-drilling. These screws feature a silver organic exterior plating that provides outstanding corrosion resistance, enduring up to 500 hours of salt-spray testing—ideal for exterior applications where durability is crucial.
Key Features:
- Self-Drilling Tip: Saves time and labour with no need for pre-drilling.
- Partial Threading: Ensures strong joint retention while reducing material stress.
- Corrosion-Resistant Coating: Silver organic finish extends lifespan in harsh environments.
- EPDM Washer: Provides a watertight seal, preventing moisture ingress and loosening.
- Case & Core Hardened Carbon Steel Construction: Delivers high strength and durability.
Applications:
- Metal Cladding & Roofing
- Structural Steelwork
- Heavy-Duty Fabrication
- Exterior Installations
Specifications:
- Thread Diameter: 5.5mm
- Length: 100mm
- Head Type: Hex
- Washer Diameter: 12mm
- Point Type: Self-Drilling (No.5)
- Socket Size: 8mm
- Finish: Silver Organic
- Material: Case & Core Hardened Carbon Steel
- Effective Thread Length: 53mm (Partially Threaded)
- Max Drilling Thickness: 12mm
With Timco’s commitment to quality, these screws ensure reliable performance even in demanding environments.
Technical Specifications
- Dispatched within 0-2 business days
- Delivery to United States: 3-5 business days*
- Free Shipping Included
- Attaching metal to heavy section steel (≤12mm)
- Exterior cladding & roofing
- Structural steel frameworks
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- Thread Diameter: 5.5mm
- Length: 100mm
- Head Type: Hex
- Fixed Washer Diameter: 12.00mm
- Point Type: Self-Drilling No.5
- Socket Size: 8mm
- Finish: Exterior (Silver Organic)
- Material: Case & Core Hardened Carbon Steel
- Effective Thread Length: 53mm (Partially Threaded)
- Max Drilling Thickness: 12.0mm
Always follow local regulations and product guidance.
Free standard delivery on Australian mainland orders. Express delivery options and international shipping available at checkout.
We offer a 30-day money-back guarantee on most products. For faulty items, contact us within 14 days for a replacement or refund.
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