SPAX-RA Rafter Screws 7.5x120mm WIROX Cylinder Head are heavy-duty structural screws engineered for timber to masonry connections in windows, rafter fixing, and structural timber framing. The large 7.5mm diameter delivers exceptional holding power in demanding structural applications.

Plug-free screwing for:
- Plastic and aluminium window and door frames
in masonry
- Frame fastening with window header
Screw characteristics:
- Flat countersunk head
- T-STAR plus
- Hardened
- Anti-friction coating

Pre -Drill hole size into masonry is 6.0mm

Key Benefits

• Heavy-duty structural performance — 7.5mm diameter provides superior shear and withdrawal strength for structural timber connections.
• 120mm length — ideal for rafter-to-wall plate connections and standard structural timber framing applications.
• WIROX coating — high-performance corrosion protection, significantly more durable than standard zinc plating, suitable for exposed structural applications.
• Cylinder head (Cyl/H) — low-profile head sits flush or slightly proud for a clean finish in structural connections.
• T-Star Plus T30 drive — exclusive to SPAX. Handles the high torque required for large diameter structural screws without cam-out.
• No pre-drilling required — on most structural timbers, saving time on site.
• Made in Germany — engineered to SPAX's exacting structural quality standards.

Ideal Applications

The SPAX-RA 7.5x120mm is ideal for rafter-to-wall plate connections, structural timber framing, post and beam construction, LVL connections, and any application requiring a high-strength timber screw with excellent penetration depth.

Specifications

• Length: 120mm
• Diameter: 7.5mm
• Head Type: Cylinder Head (Cyl/H)
• Drive: T-Star Plus T30
• Material: WIROX (high-performance corrosion protection)
• SKU: 1031010751205
• Made in Germany

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