Fibreglass Fixing Screws M6.2 x 65mm with Weatherlock Washer
The M6.2 x 65mm fibreglass fixing screw is a hex head fastener with a B8 Cat5 coating and a 32mm weatherlock washer, supplied in a box of 250. It is built for fastening fibreglass and translucent roofing sheets to timber or steel supports, where the oversized weatherlock washer spreads the load across the sheet and keeps the fixing point watertight. The B8 Cat5 coating is the corrosion-resistant finish specified for exposed roofing work.
Key Features
- M6.2 x 65mm hex head screw for fibreglass and translucent sheeting
- 32mm weatherlock washer spreads the load and seals the fixing point
- B8 Cat5 coating for corrosion resistance in exposed positions
- Suits timber or steel supports
- Box of 250 for roofing runs
Specifications
- Screw size: M6.2 x 65mm
- Head: hex
- Washer: 32mm weatherlock
- Coating: B8 Cat5
- Application: fibreglass and translucent roofing sheets
- Pack quantity: 250
Applications
- Fastening fibreglass and translucent roofing sheets to timber battens
- Fixing translucent sheeting to steel purlins
- Carports, pergolas and sheds using translucent roofing
- Roofing runs where a large sealed washer is needed
What You Need To Complete The Job
For polycarbonate sheeting use the Polycut Hex B8 Cat5 65mm or the Polycut 50mm, and for a bulk polycarbonate screw see the Polycut Multifix 250 pack. Browse the full Screws range for the complete fastener selection.
Frequently Asked Questions
What does the 32mm weatherlock washer do?
The oversized washer spreads the clamping load over a wide area of the sheet and seals the fixing point against water, which protects brittle fibreglass from cracking and keeps the roof weathertight.
Can it fix into steel as well as timber?
The screw is designed for fibreglass sheeting fixed to timber or steel supports. The B8 Cat5 coating suits the exposed conditions that roofing fixings sit in.
Why choose this over a polycarbonate fixing screw?
Fibreglass and translucent sheets use a large flat sealing washer to spread the load, which is what this screw provides with its 32mm weatherlock washer. Polycarbonate screws use cutting fins for the expansion hole instead.
How many do I need for a roof?
Fixings follow the sheet profile and the purlin spacing, typically every second crest on internal supports and every crest at sheet edges. A 250 box covers a standard run.
Can I order for delivery or pickup?
Yes. You can order online and choose Australia-wide delivery or pickup from our Truganina trade counter in Melbourne’s west. Delivery windows depend on your postcode, and we send a confirmation once your order is ready. For any questions call (03) 93941400 or email orders@singhroofingsupplies.com.au.




