BI-METAL SCREWS
- ModelEC-BI-METAL-SCREWS
- Spec 1Bi-Metal Self Drilling Screw
- Spec 2SS304/316 Body + SCM435 Alloy Steel Drill Point
- Spec 3Hex Flange Head with EPDM Waterproof Washer
- Spec 4Steel Roof, Metal Frame & Solar Mount Application
Description
BI-METAL SCREWS
Technical Drawing
Application Scene Image
Data Table
| Material | Tensile Strength N/mm² | Hardness/HV | Application Material | Material Thickness | Finish | Red Rust In Neutral Salt Spray Test | Corrosion Details | Application Circumstances | Construction Lifetime |
| Bi-Metal 316+410 RXB Coated | 500-700 | Surface: HV210-320 | Wood+Thick Construction Plastic Wood + Stainless Steel Chipboard + Carbon Steel / Stainless Steel | Carbon Steel Plate < 6mm or Stainless Steel Plate < 4mm | RXB Coating | 2000 Hrs | Difficult to Corrode, With Protective Film Once Oxidized | Neutral Indoor / Exposed Outdoor / Corrosive Outdoor / Coastal Indoor / Coastal Outdoor | Class 1, Endurance > 100 Years, Critical / High-Rise Construction |
| Core: HV190-280 |
Downloads
BI-METAL SCREWSFrequently Asked Questions
Q: What is a bi-metal screw from EC Fastener?
A: A bi-metal screw combines 316 stainless steel surface with 410 stainless steel core, RXB coated, offering both corrosion resistance and high strength.
Q: What is the corrosion resistance of the bi-metal screws?
A: 2000 hours neutral salt spray test without red rust, Class 1 construction lifetime over 100 years, suitable for critical and high-rise construction including coastal outdoor environments.
Q: What materials can the bi-metal screws fasten into?
A: Wood, thick construction plastic wood, stainless steel chipboard, carbon steel and stainless steel. Suitable for carbon steel plate under 6mm or stainless steel plate under 4mm.
Q: Where can I get specifications and pricing from ecindustry.com?
A: Contact EC Fastener Corporation through ecindustry.com for the data sheet, MOQ and export pricing.
