Self-Drilling Fasteners
Steel External Hex Head Washer Sheet Metal Roofing Screws
Galvanized self-drilling roofing screws with EPDM gasket washers for fastening sheet metal and exterior roofing applications.
These self-drilling fasteners are designed for secure attachment in sheet metal roofing applications. Each screw features galvanized metal construction, an external hex head, and an EPDM gasket washer to help create a tight, weather-resistant fastening point.
Product Highlights
Fastener Type
Self-Drilling
Designed for sheet metal fastening
Material
Galvanized
Metal screw construction
Washer Type
EPDM
Gasket washer included
Pack Quantity
250 Pcs
Bulk fastener pack
Key Features
Self-drilling design
Designed to drill into compatible sheet metal materials without requiring a separate pilot hole in many applications.
External hex head
5/16 in hex head allows for secure driving with the proper hex driver or socket attachment.
EPDM gasket washer
Integrated EPDM washer helps seal the fastening point and reduce water intrusion around the screw.
Galvanized metal construction
Galvanized finish helps improve corrosion resistance for exterior roofing and sheet metal applications.
Product Specifications
Material
Galvanized Metal + EPDM Gasket
Head Type
External HEX Head — 5/16 in
Quantity
250 pieces per pack
Recommended Use
Sheet metal roofing, exterior metal panels, trim fastening, and compatible roofing assemblies.
Use the correct 5/16 in hex driver and avoid over-tightening. The EPDM washer should compress enough to seal, but not so much that it deforms or squeezes out.
Always confirm screw length, substrate compatibility, spacing, corrosion rating, and local installation requirements before use in roofing or exterior applications.
