Hex Washer Head with EPDM Washer
Mount Hex Washer Head Screws with EPDM Washer are self drilling fasteners manufactured from Carbon Steel C1022 and zinc plated for corrosion protection. These screws incorporate an EPDM washer to provide sealing performance at fastening points in weather-exposed roofing and cladding applications.
Product Specifications
| PARAMETERS | 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 | EPDM |
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
EPDM Sealing Washer
Provides weather-tight sealing at fastening points.
Controlled Drilling Time
Optimized drilling performance across diameters.
Torque Resistance
Designed to handle installation loads.
Corrosion Protection
Zinc coating enhances service life.
Applications
Bus Depots & Transport Terminals
Used for fastening metal roof sheets and structural cladding in covered transit structures.
Airport Hangars
Supports fastening of large-span metal roofing and wall systems in aviation maintenance facilities.
Retail Sheds & Showrooms
Applied in securing roof and façade cladding systems for steel-framed retail and commercial sheds.
Automotive Parking Structures
Used for fastening metal roofing sheets and structural cladding in covered car parking areas and vehicle shelter systems.
Industrial Warehouses
Provides sealed fastening of roofing sheets exposed to rain and weather.
Commercial Roofing Projects
Ensures water-resistant fixing at roof sheet connection points.
Infrastructure & Utility Buildings
Secures external cladding while preventing water ingress at fastener points
Agricultural Buildings
Maintains weather-tight roofing in exposed rural installations.
Logistics & Distribution Centers
Supports sealed metal roofing installations over large areas.
Public Utility Structures
Fastens exposed roof sheets with integrated sealing capability.
Retail & Commercial Sheds
Provides protected fastening in outdoor roofing systems.
Solar-Integrated Industrial Roofs
Secures roof sheets in installations exposed to environmental conditions.
Frequently asked Question
Carbon Steel C1022.
Zinc plated surface finish.
It provides sealing at the fastening point to reduce water ingress.
4.8 mm, 5.5 mm, and 6.3 mm.
61 / 92 / 150 lb/in (minimum), depending on diameter.
Approximately 7 / 11 / 13 seconds depending on diameter
Weather-exposed roofing and cladding applications.
It primarily provides sealing while supporting surface compression.
Yes, they include an integrated drill point.
Yes, particularly where sealing at the fastener location is required.
Mount Roofing And Structures Pvt Ltd
