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Timco H55W16B 5.5mm x 55mm Heavy-Duty Self-Drilling Screws with EPDM Washer
The Timco H55W16B is a heavy-duty self-drilling screw designed specifically for metal construction projects and fastening metal to heavy section steel up to 12mm thick without the need for pre-drilling. With a robust 5.5mm diameter and 55mm length, this screw features a hex head with an 8mm socket and a 16mm EPDM galvanized washer with rubber to ensure a watertight seal. Its silver organic finish offers exceptional corrosion resistance, verified by over 1000 hours of salt spray testing. Constructed from case and core hardened carbon steel, it guarantees strength and durability for both professional and DIY applications.
- Suitable for metal to heavy section steel up to 12mm thick
- 16mm EPDM rubberized galvanized washer for superior sealing
- Silver organic exterior finish with corrosion resistance
- Hex head design with 8mm socket for secure fastening
- Case and core hardened carbon steel construction for lasting strength
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Product Features
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Diameter
5.5 mm
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Length
55 mm
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Head Type
Hex head with 8 mm socket
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Washer Size
16 mm EPDM galvanized rubber washer
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Material
Case and core hardened carbon steel
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Thread Length
33 mm effective thread length
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Finish
Silver organic exterior finish
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Corrosion Resistance
Over 1000 hours salt spray tested
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Application
Metal to heavy section steel up to 12 mm thick
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Packaging
Box of 100 pieces
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Suitable For
Professional tradesmen and DIY enthusiasts