Hex Washer Head with Metal Bonded Washer
Mount Hex Washer Head Screws with Metal Bonded Washer are self drilling fasteners manufactured from Carbon Steel C1022 and finished with zinc plating. The metal bonded washer enhances load distribution at the fastening point, making the screw suitable for industrial roofing and structural cladding
Product Specifications
| PARAMETER | SPECIFICATIONS |
|---|---|
| Material | Carbon Steel C1022 |
| Coating | Zinc Plated |
| Diameter | 4.8 / 5.5 / 6.3 mm |
| Torsion Strength | 61 / 92 / 150 lb/in (min) |
| Drilling Time | 7 / 11 / 13 sec |
| Washer Type | Metal Bonded |
Corrosion Classification
| Withstands 1000–1500 hrs Salt Spray Test (SST) |
|---|
| 15 Kesternich Cycles (SO₂ atmospheric simulation) |
| Acid-resistant top coat |
| Polysol zinc flake coat |
| Special zinc treatment |
| Carbon steel base |
Profile drawing
Key Performance Attributes
Metal-Bonded Washer
Improves load distribution at the fixing point.
High Torque Performance
Maintains integrity during installation.
Self-Drilling Capability
Reduces installation steps.
Corrosion Protection Layer
Zinc-plated finish supports durability.
Applications
Pre-Engineered Buildings (PEB)
Provides load-distributed fastening for metal wall and roof sheets.
Industrial Manufacturing Plants
Supports secure sheet-to-steel fastening under operational loads.
Infrastructure Projects
Anchors cladding panels to structural steel frameworks.
Automotive & Engineering Facilities
Ensures stable fastening of heavy-gauge metal sheets.
Power & Utility Buildings
Secures metal panel systems in industrial utility structures.
Commercial & Industrial Complexes
Provides durable cladding attachment across façade systems.
Process Industry Buildings
Supports structural metal fastening in industrial environments.
Heavy Industrial Structures
Improves load distribution at fastening points in steel assemblies.
Frequently asked Question
Carbon Steel C1022.
Zinc plated finish.
It improves load distribution at the fastening point.
4.8 mm, 5.5 mm, and 6.3 mm.
61 / 92 / 150 lb/in (minimum), depending on size.
7 / 11 / 13 seconds depending on diameter.
Yes, they feature an integrated drill tip.
Industrial roofing and structural cladding applications.
Metal bonded washers enhance load distribution rather than providing sealing.
No, the drill point eliminates pre-drilling.
