Roofing fasteners that promise corrosion-resistant, watertight fixings for metal and wooden roofs, HXJDAM Self-Drilling Roofing Screws. Homeowners and tradespeople gain confidence from secure, sealed connections that reduce the risk of leaks. Are these the right screws for routine roof repairs and faster installations?
⚡ At a Glance
- • Holding Strength: Precise thread geometry ensures strong penetration and firm clamping on metal and wood
- • Best for: Roofers and DIY homeowners fastening sheet metal, metal plates and profiles to wood or metal frames
- • Not ideal for: Applications requiring countersunk or flush fittings
Galvanised carbon steel screws with EPDM rubber sealing washers create sealed fixings suited to roofing. External hex heads and self-drilling tips allow no-pre-drill installation into common sheet metal and wooden substrates.
Leak prevention - with EPDM rubber sealing washer
An EPDM rubber washer compresses under the head as the screw is tightened, forming a seal around the shaft and screw hole. The washer's elasticity helps it maintain contact under temperature changes.
Seals screw penetrations to reduce water ingress and limit corrosion, keeping roof fixings watertight over time.
Quick installation - thanks to self-drilling point and hex head
A sharp self-drilling tip and precise thread profile cut and tap into metal and wood without the need for pre-drilling. An external hex head accepts torque from a wrench or socket for rapid placement.
Speeds up roof work by reducing prep time and enabling long runs of fixings with fewer tool changes.
Long-term durability - with galvanised carbon steel construction
Carbon steel cores are treated with a galvanised finish that resists mechanical damage and oxidation, while the surface resists UV exposure to help retain the coating. The combination protects the metal substrate from rust.
Maintains holding power and appearance in exposed roof conditions, extending service life and reducing maintenance.
✨ The 4 Key Reasons for HXJDAM Self-Drilling Roofing Screws
- EPDM Rubber Washer — Seals screw holes to prevent water ingress and corrosion
- Galvanised Carbon Steel — Resists rust and mechanical wear for longer service life
- Self-drilling Tip — Drills and taps without pre-drilling for faster installation
- External Hex Head — Allows strong torque application with standard wrench or socket
📋 Technical Details at a Glance
- Material: Carbon steel
- Finish: Galvanised (zinc plated)
- Size: 4.8 x 19 mm
- Quantity: 110 pieces
- Head type: External hex head
❓ Frequently Asked Questions
Q: Do these screws require pre-drilling?
A: No, pre-drilling is not required because the self-drilling tip drills and taps into metal and wood. A hex socket is included and a suitable wrench is recommended for installation.
Q: What materials can they fasten?
A: Designed for fastening sheet metal, metal plates and profiles to wooden substrates, and suitable for metal structure and roof maintenance applications.
Q: How does the washer help prevent leaks?
A: The EPDM rubber sealing washer compresses around the screw shank to seal the connection, preventing water ingress and helping to limit corrosion while remaining elastic under temperature changes.
🏆 Our Verdict
Suitable for roofers, builders and DIY homeowners who need reliable, sealed fixings for metal and timber roofs. The key strength lies in the combination of galvanised carbon steel, a self-drilling tip and EPDM sealing washers that prevent leaks and speed installation. Durable finish and watertight connections make these screws a sensible long-term choice for routine roof maintenance.
