Bi-Flex™ 300 Series Stainless Steel Bi-Metal Self-Drilling Fasteners Technical Specification Data

The Corrosion Resistance of 18-8 Stainless Steel & the Efficiency of Drill Screws

Bi-Flex Stainless Steel Bi-Metal Self-Drilling Fasteners Diagram

Owners, architects and, design engineers expect longer life cycles from buildings. Extended warranties and use of more sustainable materials add up to greater expectations for performance – from structural integrity to the purely aesthetic – of all building components.

The Solution: Bi-Flex™ 300 Series (18-8) Stainless Steel Self-Drilling Fasteners

Bi-Flex fasteners bring the corrosion resistance of 300 series stainless steel and the efficiency of self-drilling fasteners together in one unique fastener.

  • Unmatched, multi-level corrosion resistance
  • Quick and easy installation into structural steel and aluminum up to 1/2" thick
  • Perfect choice for exposed/wet areas/aggressive environments
  • High performance for your most critical applications

To provide the maximum, long-term corrosion resistance, Elco 300 series stainless steel for their Bi-Flex fasteners.

To allow for the most efficient installations, each Bi-Flex fastener has a fused and hardened, self-drilling and tapping point.

To combat the widest variety of corrosion scenarios involving dissimilar metals such as aluminum, each 300 series stainless steel Bi-Flex fastener has Stalgard® GB (Galvanic Barrier) coating.


To eliminate the threat of delayed “embrittlement” fastener failures, such as Hydrogen Assisted Stress Corrosion Cracking (HASCC), seen in hardened 400 series self-drilling stainless steel fasteners, Bi-Flex fasteners are made of 300 series stainless alloys that are virtually immune to this type of catastrophic failure.

For the most demanding applications that other fasteners can’t handle, Bi-Flex 300 series stainless steel self-drilling fasteners are the right choice.

Understand Bi-Flex® Features, Applications, types of corrosion and about embrittlement failures


Shop Bi-Flex Bi-Metal Self-Drilling Fasteners

Elco Technical & Product Data Pages

Elco Fastener Product Lines


Bi-Flex Stainless Steel Bi-Metal Self-Drilling Fasteners Head Bi-Flex Stainless Steel Bi-Metal Self-Drilling Fasteners Point Diagram

Features

  • Bi-metal technology – 300 (18-8) stainless steel head and shank
  • Fused and hardened steel drill point
  • Silver-colored Stalgard® GB coating
  • Wide variety of sizes and head styles

Approvals

  • City of Los Angeles (COLA) Research Report: RR25886 (CSI #05 05 23)

Benefits

  • Outstanding corrosion resistance and long service life
  • High strength, ductility and reliability
  • Virtually immune to delayed embrittlement failures
  • Greater galvanic compatibility in dissimilar metal applications involving aluminum
  • Quickly drill and tap into steel or aluminum up to 1/2" thick
  • High in-place value over the life of structures, components and systems

Applications

  • Exposed/wet areas/coastal/aggressive environments
  • Curtain wall/window wall systems/rain-screen systems
  • Windows/doors/aluminum enclosures/skylights
  • Composite panel systems to aluminum or steel
  • ACQ-treated wood to steel
  • Brick veneer anchoring
  • Solar panel systems

Whether your application is lightweight, structural or purely aesthetic, you won’t find a better or easier-to-install 300 series stainless steel fastener with multi‑level corrosion protection for your toughest construction applications.


Bi-Flex Corrosion Types
Bi-Flex Embrittlement Failures
Bi-Flex Spec Pages