SureFast® A4 stainless 4.8mm diameter fastener
A4 stainless steel fasteners for fixing insulation and single ply / bitumen membrane to aluminium, steel and timber decks in combination with appropriate SureFast® components.
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Product Code
SF-RS-SSA4-4.8
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1 Day
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Key Features
Specification
Capacity
Performance
Installation
Downloads
Description
A4 stainless steel fasteners for fixing insulation and membrane to aluminium, steel and timber decks in combination with appropriate SureFast®components.
For mechanically fixing flat roofing accessories and trims to thin metal and timber materials.
For mechanically fixing timber battens and timber-like materials to thin metal.
Features & Benefits
- A4/316 stainless steel for corrosion resistance, suitable for use in marine environments
- Optimised thread design for excellent pull-out performance and resistance to unwinding
- ETA Approval and CE Marked
- UKTA Approval and UKCA Marked
- Purpose-designed and precision manufactured by Fixfast
Application
- For mechanically fixing single-ply and flat roofing systems to steel and timber decks in combination with appropriate SureFast components
Fastener Material
Fastener
Austenitic Stainless Steel A4 Grade (316) with organic coating
Durability Class
|
Years / Environment
|
|||||||
|---|---|---|---|---|---|---|---|
| Interior | Semi-interior | Rural | Urban | Industrial / Coastal | Marine | Swimming pools & Chemical plants | |
| Corrosivity Category | C1 | - | C2 | C3 | C4 | C5 | - |
| Austenitic Stainless Steel A4 Grade (316) | 40 | 40 | 40 | 40 | 30 | 25 | 0 |
Dimensions
Diameter
4.8 mm
Head Style
Low profile oval style, TX25 recess
Fastener Material
Fastener
Austenitic Stainless Steel A4 Grade (316) with organic coating
Durability Class
|
Years / Environment
|
|||||||
|---|---|---|---|---|---|---|---|
| Interior | Semi-interior | Rural | Urban | Industrial / Coastal | Marine | Swimming pools & Chemical plants | |
| Corrosivity Category | C1 | - | C2 | C3 | C4 | C5 | - |
| Austenitic Stainless Steel A4 Grade (316) | 40 | 40 | 40 | 40 | 30 | 25 | 0 |
Dimensions
Diameter
4.8 mm
Length (mm)
100 mm
Head Style
Low profile oval style, TX25 recess
Fastener Material
Fastener
Austenitic Stainless Steel A4 Grade (316) with organic coating
Durability Class
|
Years / Environment
|
|||||||
|---|---|---|---|---|---|---|---|
| Interior | Semi-interior | Rural | Urban | Industrial / Coastal | Marine | Swimming pools & Chemical plants | |
| Corrosivity Category | C1 | - | C2 | C3 | C4 | C5 | - |
| Austenitic Stainless Steel A4 Grade (316) | 40 | 40 | 40 | 40 | 30 | 25 | 0 |
Dimensions
Diameter
4.8 mm
Length (mm)
160 mm
Head Style
Low profile oval style, TX25 recess
Fastener Material
Fastener
Austenitic Stainless Steel A4 Grade (316) with organic coating
Durability Class
|
Years / Environment
|
|||||||
|---|---|---|---|---|---|---|---|
| Interior | Semi-interior | Rural | Urban | Industrial / Coastal | Marine | Swimming pools & Chemical plants | |
| Corrosivity Category | C1 | - | C2 | C3 | C4 | C5 | - |
| Austenitic Stainless Steel A4 Grade (316) | 40 | 40 | 40 | 40 | 30 | 25 | 0 |
Dimensions
Diameter
4.8 mm
Length (mm)
40 mm
Head Style
Low profile oval style, TX25 recess
Fastener Material
Fastener
Austenitic Stainless Steel A4 Grade (316) with organic coating
Durability Class
|
Years / Environment
|
|||||||
|---|---|---|---|---|---|---|---|
| Interior | Semi-interior | Rural | Urban | Industrial / Coastal | Marine | Swimming pools & Chemical plants | |
| Corrosivity Category | C1 | - | C2 | C3 | C4 | C5 | - |
| Austenitic Stainless Steel A4 Grade (316) | 40 | 40 | 40 | 40 | 30 | 25 | 0 |
Dimensions
Diameter
4.8 mm
Length (mm)
200 mm
Head Style
Low profile oval style, TX25 recess
Fastener Material
Fastener
Austenitic Stainless Steel A4 Grade (316) with organic coating
Durability Class
|
Years / Environment
|
|||||||
|---|---|---|---|---|---|---|---|
| Interior | Semi-interior | Rural | Urban | Industrial / Coastal | Marine | Swimming pools & Chemical plants | |
| Corrosivity Category | C1 | - | C2 | C3 | C4 | C5 | - |
| Austenitic Stainless Steel A4 Grade (316) | 40 | 40 | 40 | 40 | 30 | 25 | 0 |
Dimensions
Diameter
4.8 mm
Length (mm)
120 mm
Head Style
Low profile oval style, TX25 recess
Fastener Material
Fastener
Austenitic Stainless Steel A4 Grade (316) with organic coating
Durability Class
|
Years / Environment
|
|||||||
|---|---|---|---|---|---|---|---|
| Interior | Semi-interior | Rural | Urban | Industrial / Coastal | Marine | Swimming pools & Chemical plants | |
| Corrosivity Category | C1 | - | C2 | C3 | C4 | C5 | - |
| Austenitic Stainless Steel A4 Grade (316) | 40 | 40 | 40 | 40 | 30 | 25 | 0 |
Dimensions
Diameter
4.8 mm
Length (mm)
60 mm
Head Style
Low profile oval style, TX25 recess
Fastener Material
Fastener
Austenitic Stainless Steel A4 Grade (316) with organic coating
Durability Class
|
Years / Environment
|
|||||||
|---|---|---|---|---|---|---|---|
| Interior | Semi-interior | Rural | Urban | Industrial / Coastal | Marine | Swimming pools & Chemical plants | |
| Corrosivity Category | C1 | - | C2 | C3 | C4 | C5 | - |
| Austenitic Stainless Steel A4 Grade (316) | 40 | 40 | 40 | 40 | 30 | 25 | 0 |
Dimensions
Diameter
4.8 mm
Length (mm)
80 mm
Head Style
Low profile oval style, TX25 recess
Build-up
Fastener pull-out performance
| NR,II,K (Tensile - Pull-out) | 18mm Plywood: 1.77 kN |
| 18mm OSB/3: 1.37 kN | |
| 0.7mm Steel: 1.08 kN | |
| 0.9mm Steel: 1.45 kN | |
| 1.2mm Steel: 2.24 kN | |
| Timber 38mm embedment: 4.17 kN |
Fastener pull-out performance
| NR,II,K (Tensile - Pull-out) | 18mm Plywood: 1.77 kN |
| 18mm OSB/3: 1.37 kN | |
| 0.7mm Steel: 1.08 kN | |
| 0.9mm Steel: 1.45 kN | |
| 1.2mm Steel: 2.24 kN | |
| Timber 38mm embedment: 4.17 kN |
Fastener pull-out performance
| NR,II,K (Tensile - Pull-out) | 18mm Plywood: 1.77 kN |
| 18mm OSB/3: 1.37 kN | |
| 0.7mm Steel: 1.08 kN | |
| 0.9mm Steel: 1.45 kN | |
| 1.2mm Steel: 2.24 kN | |
| Timber 38mm embedment: 4.17 kN |
Fastener pull-out performance
| NR,II,K (Tensile - Pull-out) | 18mm Plywood: 1.77 kN |
| 18mm OSB/3: 1.37 kN | |
| 0.7mm Steel: 1.08 kN | |
| 0.9mm Steel: 1.45 kN | |
| 1.2mm Steel: 2.24 kN | |
| Timber 38mm embedment: 4.17 kN |
Fastener pull-out performance
| NR,II,K (Tensile - Pull-out) | 18mm Plywood: 1.77 kN |
| 18mm OSB/3: 1.37 kN | |
| 0.7mm Steel: 1.08 kN | |
| 0.9mm Steel: 1.45 kN | |
| 1.2mm Steel: 2.24 kN | |
| Timber 38mm embedment: 4.17 kN |
Fastener pull-out performance
| NR,II,K (Tensile - Pull-out) | 18mm Plywood: 1.77 kN |
| 18mm OSB/3: 1.37 kN | |
| 0.7mm Steel: 1.08 kN | |
| 0.9mm Steel: 1.45 kN | |
| 1.2mm Steel: 2.24 kN | |
| Timber 38mm embedment: 4.17 kN |
Fastener pull-out performance
| NR,II,K (Tensile - Pull-out) | 18mm Plywood: 1.77 kN |
| 18mm OSB/3: 1.37 kN | |
| 0.7mm Steel: 1.08 kN | |
| 0.9mm Steel: 1.45 kN | |
| 1.2mm Steel: 2.24 kN | |
| Timber 38mm embedment: 4.17 kN |
Fastener pull-out performance
| NR,II,K (Tensile - Pull-out) | 18mm Plywood: 1.77 kN |
| 18mm OSB/3: 1.37 kN | |
| 0.7mm Steel: 1.08 kN | |
| 0.9mm Steel: 1.45 kN | |
| 1.2mm Steel: 2.24 kN | |
| Timber 38mm embedment: 4.17 kN |
Installation and handling
| Installation tool | Variable speed electric screw gun |
| Installation drive | TX25 |
| Installation speed | 1500 RPM |
| Correct installation | Fasteners should be driven within three degrees of perpendicular to the surface of the fastened material. Use a depth-setting nosepiece to avoid over-driving, and do not over-tighten. Variants with bonded washers should not have the rubber compressed to less than two-thirds of its uncompressed height. Care should be taken when engaging and disengaging from the fastener head to avoid damage to the protective coating. |
| Handling | Fasteners may have sharp edges, and the use of power tools can be dangerous. Use personal protective equipment. Store fasteners in dry conditions. Inspect each fastener before use and do not use damaged fasteners. |
Downloads
Please see the below files available to download for this product
Key Features
Description
A4 stainless steel fasteners for fixing insulation and membrane to aluminium, steel and timber decks in combination with appropriate SureFast®components.
For mechanically fixing flat roofing accessories and trims to thin metal and timber materials.
For mechanically fixing timber battens and timber-like materials to thin metal.
Features & Benefits
- A4/316 stainless steel for corrosion resistance, suitable for use in marine environments
- Optimised thread design for excellent pull-out performance and resistance to unwinding
- ETA Approval and CE Marked
- UKTA Approval and UKCA Marked
- Purpose-designed and precision manufactured by Fixfast
Application
- For mechanically fixing single-ply and flat roofing systems to steel and timber decks in combination with appropriate SureFast components
Specification
Fastener Material
Fastener
Austenitic Stainless Steel A4 Grade (316) with organic coating
Durability Class
|
Years / Environment
|
|||||||
|---|---|---|---|---|---|---|---|
| Interior | Semi-interior | Rural | Urban | Industrial / Coastal | Marine | Swimming pools & Chemical plants | |
| Corrosivity Category | C1 | - | C2 | C3 | C4 | C5 | - |
| Austenitic Stainless Steel A4 Grade (316) | 40 | 40 | 40 | 40 | 30 | 25 | 0 |
Dimensions
Diameter
4.8 mm
Head Style
Low profile oval style, TX25 recess
Fastener Material
Fastener
Austenitic Stainless Steel A4 Grade (316) with organic coating
Durability Class
|
Years / Environment
|
|||||||
|---|---|---|---|---|---|---|---|
| Interior | Semi-interior | Rural | Urban | Industrial / Coastal | Marine | Swimming pools & Chemical plants | |
| Corrosivity Category | C1 | - | C2 | C3 | C4 | C5 | - |
| Austenitic Stainless Steel A4 Grade (316) | 40 | 40 | 40 | 40 | 30 | 25 | 0 |
Dimensions
Diameter
4.8 mm
Length (mm)
100 mm
Head Style
Low profile oval style, TX25 recess
Fastener Material
Fastener
Austenitic Stainless Steel A4 Grade (316) with organic coating
Durability Class
|
Years / Environment
|
|||||||
|---|---|---|---|---|---|---|---|
| Interior | Semi-interior | Rural | Urban | Industrial / Coastal | Marine | Swimming pools & Chemical plants | |
| Corrosivity Category | C1 | - | C2 | C3 | C4 | C5 | - |
| Austenitic Stainless Steel A4 Grade (316) | 40 | 40 | 40 | 40 | 30 | 25 | 0 |
Dimensions
Diameter
4.8 mm
Length (mm)
160 mm
Head Style
Low profile oval style, TX25 recess
Fastener Material
Fastener
Austenitic Stainless Steel A4 Grade (316) with organic coating
Durability Class
|
Years / Environment
|
|||||||
|---|---|---|---|---|---|---|---|
| Interior | Semi-interior | Rural | Urban | Industrial / Coastal | Marine | Swimming pools & Chemical plants | |
| Corrosivity Category | C1 | - | C2 | C3 | C4 | C5 | - |
| Austenitic Stainless Steel A4 Grade (316) | 40 | 40 | 40 | 40 | 30 | 25 | 0 |
Dimensions
Diameter
4.8 mm
Length (mm)
40 mm
Head Style
Low profile oval style, TX25 recess
Fastener Material
Fastener
Austenitic Stainless Steel A4 Grade (316) with organic coating
Durability Class
|
Years / Environment
|
|||||||
|---|---|---|---|---|---|---|---|
| Interior | Semi-interior | Rural | Urban | Industrial / Coastal | Marine | Swimming pools & Chemical plants | |
| Corrosivity Category | C1 | - | C2 | C3 | C4 | C5 | - |
| Austenitic Stainless Steel A4 Grade (316) | 40 | 40 | 40 | 40 | 30 | 25 | 0 |
Dimensions
Diameter
4.8 mm
Length (mm)
200 mm
Head Style
Low profile oval style, TX25 recess
Fastener Material
Fastener
Austenitic Stainless Steel A4 Grade (316) with organic coating
Durability Class
|
Years / Environment
|
|||||||
|---|---|---|---|---|---|---|---|
| Interior | Semi-interior | Rural | Urban | Industrial / Coastal | Marine | Swimming pools & Chemical plants | |
| Corrosivity Category | C1 | - | C2 | C3 | C4 | C5 | - |
| Austenitic Stainless Steel A4 Grade (316) | 40 | 40 | 40 | 40 | 30 | 25 | 0 |
Dimensions
Diameter
4.8 mm
Length (mm)
120 mm
Head Style
Low profile oval style, TX25 recess
Fastener Material
Fastener
Austenitic Stainless Steel A4 Grade (316) with organic coating
Durability Class
|
Years / Environment
|
|||||||
|---|---|---|---|---|---|---|---|
| Interior | Semi-interior | Rural | Urban | Industrial / Coastal | Marine | Swimming pools & Chemical plants | |
| Corrosivity Category | C1 | - | C2 | C3 | C4 | C5 | - |
| Austenitic Stainless Steel A4 Grade (316) | 40 | 40 | 40 | 40 | 30 | 25 | 0 |
Dimensions
Diameter
4.8 mm
Length (mm)
60 mm
Head Style
Low profile oval style, TX25 recess
Fastener Material
Fastener
Austenitic Stainless Steel A4 Grade (316) with organic coating
Durability Class
|
Years / Environment
|
|||||||
|---|---|---|---|---|---|---|---|
| Interior | Semi-interior | Rural | Urban | Industrial / Coastal | Marine | Swimming pools & Chemical plants | |
| Corrosivity Category | C1 | - | C2 | C3 | C4 | C5 | - |
| Austenitic Stainless Steel A4 Grade (316) | 40 | 40 | 40 | 40 | 30 | 25 | 0 |
Dimensions
Diameter
4.8 mm
Length (mm)
80 mm
Head Style
Low profile oval style, TX25 recess
Capacity
Build-up
Performance
Fastener pull-out performance
| NR,II,K (Tensile - Pull-out) | 18mm Plywood: 1.77 kN |
| 18mm OSB/3: 1.37 kN | |
| 0.7mm Steel: 1.08 kN | |
| 0.9mm Steel: 1.45 kN | |
| 1.2mm Steel: 2.24 kN | |
| Timber 38mm embedment: 4.17 kN |
Fastener pull-out performance
| NR,II,K (Tensile - Pull-out) | 18mm Plywood: 1.77 kN |
| 18mm OSB/3: 1.37 kN | |
| 0.7mm Steel: 1.08 kN | |
| 0.9mm Steel: 1.45 kN | |
| 1.2mm Steel: 2.24 kN | |
| Timber 38mm embedment: 4.17 kN |
Fastener pull-out performance
| NR,II,K (Tensile - Pull-out) | 18mm Plywood: 1.77 kN |
| 18mm OSB/3: 1.37 kN | |
| 0.7mm Steel: 1.08 kN | |
| 0.9mm Steel: 1.45 kN | |
| 1.2mm Steel: 2.24 kN | |
| Timber 38mm embedment: 4.17 kN |
Fastener pull-out performance
| NR,II,K (Tensile - Pull-out) | 18mm Plywood: 1.77 kN |
| 18mm OSB/3: 1.37 kN | |
| 0.7mm Steel: 1.08 kN | |
| 0.9mm Steel: 1.45 kN | |
| 1.2mm Steel: 2.24 kN | |
| Timber 38mm embedment: 4.17 kN |
Fastener pull-out performance
| NR,II,K (Tensile - Pull-out) | 18mm Plywood: 1.77 kN |
| 18mm OSB/3: 1.37 kN | |
| 0.7mm Steel: 1.08 kN | |
| 0.9mm Steel: 1.45 kN | |
| 1.2mm Steel: 2.24 kN | |
| Timber 38mm embedment: 4.17 kN |
Fastener pull-out performance
| NR,II,K (Tensile - Pull-out) | 18mm Plywood: 1.77 kN |
| 18mm OSB/3: 1.37 kN | |
| 0.7mm Steel: 1.08 kN | |
| 0.9mm Steel: 1.45 kN | |
| 1.2mm Steel: 2.24 kN | |
| Timber 38mm embedment: 4.17 kN |
Fastener pull-out performance
| NR,II,K (Tensile - Pull-out) | 18mm Plywood: 1.77 kN |
| 18mm OSB/3: 1.37 kN | |
| 0.7mm Steel: 1.08 kN | |
| 0.9mm Steel: 1.45 kN | |
| 1.2mm Steel: 2.24 kN | |
| Timber 38mm embedment: 4.17 kN |
Fastener pull-out performance
| NR,II,K (Tensile - Pull-out) | 18mm Plywood: 1.77 kN |
| 18mm OSB/3: 1.37 kN | |
| 0.7mm Steel: 1.08 kN | |
| 0.9mm Steel: 1.45 kN | |
| 1.2mm Steel: 2.24 kN | |
| Timber 38mm embedment: 4.17 kN |
Installation
Installation and handling
| Installation tool | Variable speed electric screw gun |
| Installation drive | TX25 |
| Installation speed | 1500 RPM |
| Correct installation | Fasteners should be driven within three degrees of perpendicular to the surface of the fastened material. Use a depth-setting nosepiece to avoid over-driving, and do not over-tighten. Variants with bonded washers should not have the rubber compressed to less than two-thirds of its uncompressed height. Care should be taken when engaging and disengaging from the fastener head to avoid damage to the protective coating. |
| Handling | Fasteners may have sharp edges, and the use of power tools can be dangerous. Use personal protective equipment. Store fasteners in dry conditions. Inspect each fastener before use and do not use damaged fasteners. |
Downloads
Downloads
Please see the below files available to download for this product
Client Technical Services
Fixfast's technical team provides a range of calculations and technical services to contractors and architects looking to purchase or specify our products. You can find out more about these services here, or register a request below.
Tapered scheme fastener selection
Upload a plan for your tapered insulation scheme, and we’ll calculate the optimum fastener requirements for each insulation board thickness.
Wind load calculation
Windload calculations typically for flat roofing projects using our SureFast flat roofing fastener systems, in accordance with BS EN 1991-1-4:2005 +A1:2010.
