One Shot Timber Screws for Laserlite 50mm (50 Pack)

The One Shot Timber Screws for Laserlite are purpose-built fasteners for fixing polycarbonate roofing and cladding sheets to timber rafters and battens. Supplied in a handy pack of 50, they combine speed of installation with long-term weather resistance, making them the ideal companion for Laserlite multiwall, corrugated and Greca profiles.

Each screw features a patented cutting wing and drill point that forms a clearance hole through the polycarbonate sheet as it drives into the timber below. This single-step action removes the need for pre-drilling and ensures the hole is sized to allow the thermal expansion and contraction of the sheet, preventing stress cracks around the fixing point.

The oversized 29mm clear polycarbonate washer, backed by UV-stable EPDM, compresses uniformly and keeps water out while letting the sheet flex. With a Type 17 coarse thread for high pull-out strength in timber and a Class 4 corrosion-resistant coating to AS 3566, it is built for exposed coastal and industrial environments.

Key Features

• Drill, countersink and seal in a single drive
• Patented cutting wing and drill point form a clearance hole
• 29mm clear polycarbonate washer with UV-stable EPDM
• Type 17 coarse thread for high pull-out strength
• Class 4 coating to AS 3566 for coastal and industrial use
• 50mm length, the popular single-sheet fixing size

Specifications

Applications

• Pergolas, verandas and patio roofs
• Greenhouses and nursery shelters
• Carports and covered walkways
• Fixing Laserlite multiwall, corrugated and Greca sheets

What You Need To Complete The Job

These screws fix the polycarbonate sheet to the timber frame. They are used with Laserlite Multiwall and the wider Laserlite sheet range, and they pair with the H bar and edge profiles for a full roof. The sheets and accessories are in the Laserlite Multiwall category, inside the wider Polycarbonate Roofing range.

Frequently Asked Questions

What makes these screws one shot?

The patented cutting wing and drill point form a clearance hole in the polycarbonate as the screw drives into the timber. That single step drills, countersinks and seals, so there is no separate pre-drilling stage on site.

Why is a clearance hole important in polycarbonate?

Polycarbonate expands and contracts with temperature far more than timber. The clearance hole made by the cutting wing is sized to allow that movement, so the sheet does not stress-crack around the fixing point over time.

What does the 29mm washer do?

The oversized clear polycarbonate washer, backed by UV-stable EPDM, spreads the clamping pressure and seals the fixing point against water. It keeps the sheet weather tight while allowing the natural flex of the panel.

Are they suitable for coastal areas?

Yes. The Class 4 corrosion-resistant coating to AS 3566 is engineered for exposure in coastal and industrial environments without red rust, which makes them a long-life choice near salt air.

What timber can they fix into?

The Type 17 coarse thread cuts its own path in softwoods and hardwoods, giving high pull-out strength. Drive the screw until the washer just begins to compress, and space fixings at the recommended intervals on the sheet peaks.