M5 x 80 Green Decking Screw (100/Box)
Box of 100 exterior decking screws (M5 x 80, green) with corrosion-resistant coating and countersunk head. Ideal for hardwood and softwood decks. Thick gauge secures heavy-duty fixings in joists, beams, and structural frames.
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Tue 14 Oct
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Product Overview
Box of 100 exterior decking screws (M5 x 80, green) with corrosion-resistant coating and countersunk head. Ideal for hardwood and softwood decks. Thick gauge secures heavy-duty fixings in joists, beams, and structural frames.
Delivery & Returns Information
How Our Delivery Works
We work with a nationwide network of trusted suppliers. As a result, items in your basket may be supplied by different suppliers and delivered separately. Where this applies, you'll see multiple delivery charges at checkout. We always aim to group products from the same supplier to keep delivery costs as low as possible.
Delivery Areas & Charges
Delivery charges listed on our website apply to mainland UK, excluding the following postcode areas: AB, CF, DD, DG, FK, KW, IV, LA, LD, LL, NP, PA, PH, SA, SY
If your delivery address falls within one of these postcode areas, we’ll be in touch before processing your order to confirm any additional delivery costs.
Please note: We do not currently offer delivery outside the UK mainland.
Standard (Nationwide) Delivery
| Screws & Fixings and Adhesives & Sealants | |
|---|---|
| ORDER VALUE | DELIVERY CHARGE |
| Under £50 | £5 ex. VAT |
| Over £50 ex. VAT | FREE |
| Insulation, Plasterboard and Drylining Products | |
| ORDER VALUE | DELIVERY CHARGE |
| Under £350 | £35 ex. VAT |
| Over £350 ex. VAT | FREE |
| Timber & Sheet, Building Materials, Joinery and Gardens & Landscaping Products | |
| ORDER VALUE | DELIVERY CHARGE |
| Under £300 | £10 ex. VAT |
| Over £300 ex. VAT | FREE |
Express Delivery
| Express Delivery - Insulation and Plasterboard & Drylining | |
|---|---|
| ORDER VALUE | DELIVERY CHARGE |
| Under £400 | £50 ex. VAT |
| Over £400 ex. VAT | £35 ex. VAT |
| Express Delivery - Timber & Sheet, Building Materials, Joinery and Gardens & Landscaping Products | |
| ORDER VALUE | DELIVERY CHARGE |
| Under £300 | £50 ex. VAT |
| Over £300 ex. VAT | £35 ex. VAT |
Returns
We offer a 30 day returns policy on any faulty products.
Key Features
- {{shield}} Exterior-grade fasteners
- {{keyboard_double_arrow_down}} Coarse single thread and sharp point
- {{vertical_align_center}} Countersunk head clamps boards to joists
- {{fitness_center}} Hardened carbon steel
Technical Specification
| Material Type: | Ruspert Coated Steel |
|---|---|
| Length: | 80mm |
| Box Quantity: | 100 |
| Sales Unit: | Box |
| Colour: | Green |
| Collated: | No |
| Diameter: | 5mm |
| Head Type: | Countersunk |
| Indoor/Outdoor Usage: | Outdoor |
| Drive Type: | Pozi |
| Thread Length: | Fully Threaded |
Product Overview
M5 x 80 Green Decking Screws for reliable board-to-joist fixing in hardwood, softwood, and treated timbers.
Each screw is manufactured from Ruspert-coated steel, featuring a durable three-layer metallic coating of zinc, film, and ceramic.
This advanced finish offers excellent corrosion resistance and a subtle, low-visibility appearance that complements the colour of treated softwood decking and garden structures.
The countersunk head draws boards tight for a flush, professional finish with reduced movement and creak, while the diameter improves shear capacity and thread engagement,
Thick gauge supports heavy fixings in joists, beams, and frames.
Features & Benefits
- Heavy-gauge strength: 5mm diameter improves bending and shear resistance in demanding details.
- Countersunk control: Flush seating reduces snags and improves water run-off.
- Positive bite: Coarse thread develops strong pull-down in treated timbers.
- Low-visibility head: Green finish blends with treated softwood decking and garden structures.
- Nominal size: M5 x 80mm.
- Tub quantity: Supplied in a box of 100 for efficient deck coverage and fewer on-site restocks.
Applications
- Joist and beam fixing: Provides secure connections in deck framing and substructure assembly.
- Thick decking boards: Deep embedment ensures strong board-to-joist attachment in large-section timber.
- Structural timber joints: Suitable for heavy carpentry, pergolas, and framed outdoor structures.
- Raised decks and steps: Delivers stability and pull-down strength in high-load zones.
- General exterior joinery: Ideal for heavy fascias, bearers, and support timbers.
Installation Guidance
- Pilot & clearance: Pilot dense hardwoods and pre-drill near board ends to limit splitting.
- Driving technique: Drive at moderate speed with steady pressure; avoid over-torque that can strip fibres.
- Head seating: Countersink until flush; do not bury the head below the board surface.
- Good practice: Maintain consistent board gaps and fix each board with two screws per joist line.
Compliance & Performance
- Manufacturing reference: Produced to relevant timber fastener requirements (EN 14592 reference for mechanical fasteners).
- Corrosion protection: Exterior coated finish suitable for typical residential exposure; check local exposure class.
- Substrate suitability: Use with timber and most composite-over-timber installs; verify composite manufacturer guidance.
- Safety: Wear eye protection; support boards during fixing.
- Important note: For aggressive/coastal environments or permanent wet areas, specify stainless steel grade fasteners.
