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Bi Metal Screws
Material: Stainless Steel (A2/A4)
Diameter: 4.2,4.8,5.5,6.3 mm
Length: From 20 to 300mm
What is it?
The combination of the stainless and carbon steel.
Stainless on the top and carbon on the bottom.
Head and partial threads are made of stainless steel (A2/A4).
Drill point and partial threads (usually the bottom three threads or more) are made of carbon steel.
Door / Window / Roofing
Public construction (i.e. Airports, Subway Stations, Highway, Dam, Bridge, Arena)
Excellent corrosion resistance
Provides a more durable and safer condition
Avoids high maintenance frequency and cost
No pre-drill needed
Easy for application
Automatic welding production
Less human errors
Higher efficiency and productivity
Advanced Hardening Process
Prevents the stainless part from being hardened
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