Metal Roofing & Wall Cladding

Self-drilling bi-metallic screws (25-100 mm) for fixing metal roof and wall sheets to steel purlins and frames – drill, tap and fasten in one step. RUSPERT coated to Class 4 (AS 3566.2-2005).

FACTORY & QUALITY PROOF

Manufacturing, Inspection and Export Readiness

Real production, inspection and warehouse visuals help buyers review supplier capability before sending drawings or a bulk inquiry.

RUSPERT corrosion-resistant coating line
Stainless steel screw cold heading
Bi-metal self drilling screw assembly and welding
Bi-metal assembly & welding
Stainless steel screw cold heading at Infasron factory
RUSPERT coating line
Salt spray testing for Class 4 corrosion resistance
Salt spray testing to Class 4
Dimension, torque and drill-point inspection
Dimension, torque & drill-point inspection
Warehouse and export packing inspection
Warehouse and export packing
CAPABILITIES

Materials, Applications, Customization & Quality

Product configuration, application review and documentation are confirmed from verified attributes, drawings and order requirements — unverified options are not presented as specifications.

Materials & Finishes

Bi-metallic construction is used across the range — 304 or 316 stainless steel head with a hardened carbon steel drill tip. The standard RUSPERT coating meets Class 4 (AS 3566.2-2005) for corrosion resistance. Options are confirmed from product attributes, required standard, drawing and application; unverified options are not presented as product specifications.

Applications

Send the assembly, base material, load, environment and service requirements so the screw configuration — drill point, thread and head — can be reviewed against its intended use in steel-to-steel or steel-to-light-gauge fixing.

Customization

Custom dimensions, thread forms, head styles, drill points, materials, finishes, packing and labeling can be reviewed from drawings or samples to match project or procurement specifications.

Quality Documents

Mill test certificates, coating test reports, inspection records and export documentation can be arranged according to agreed order requirements.

WHY INFASRON

Why Choose Infasron

A focused bi-metallic self-drilling screw supplier for steel-to-steel and light-gauge fixing, with coating, customization and export support for project and distributor orders.

  • Bi-metallic self-drilling screws: 304/316 stainless head with hardened carbon steel drill tip
  • RUSPERT coating meets Class 4 corrosion resistance under AS 3566.2-2005
  • Structural, suture and pointed screw configurations for steel-to-steel and light-gauge fixing
  • Drawing-based and sample-based customization for dimensions, heads, threads and finishes
  • Export packing, labeling and documentation support for project or distributor orders
FAQ

Frequently Asked Questions

Common questions on base materials, drill points, corrosion resistance and customization for bi-metallic structural self-drilling screws.

What base materials are Structural self-drilling screws suitable for?

They are used for steel-to-steel and steel-to-light-gauge fixing. With drill points from 3# to 7#, the range covers different steel thicknesses; send the base material and thickness so the drill point and thread can be confirmed for the assembly.

What corrosion resistance does the coating provide?

The standard RUSPERT coating meets Class 4 under AS 3566.2-2005, intended for outdoor and corrosive environments. Coating test reports can be arranged with the order when required.

Can I get a custom size or head style for my project?

Yes. Custom dimensions, thread forms, head styles, drill points, materials and finishes can be reviewed from drawings or samples to match project or procurement specifications.

CERTIFICATIONS & COMPLIANCE

Certified & Trusted Worldwide

Verified coatings, corrosion ratings and management systems behind every Infasron bi-metallic self-drilling screw.

RUSPERT Coating

High anti-corrosion coating for outdoor and corrosive environments.

Salt Spray Class 4

Corrosion resistance certified to AS 3566.2 Class 4.

CE Certified

Complies with EN 14566 via EUROCERT.

ISO 9001 / 14001 / 45001

Integrated quality, environmental and safety management.