DrillFastĀ® A4 stainless low profile light steel mainfix fastener, 29mm washer
    A4/316 grade stainless steel low profile fastener for fixing to light metal purlins and rails.
Supplied pre-assembled with an Aluminium / EPDM rubber 29mm diameter sealing washer, normally used for fastening rooflights.
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                Certified by
     
                
             
                
            Estimated lead times
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Estimated lead times
2-3 Days
            
                Product Code            
            
                
                    DF3-SSA4-P-A29-5.5
                
                
                    
                
            
        
    
                    
                        Lead Time                    
                        
                        2-3 Days                    
                    
                
                    
                        Lead Time                    
                        
                        2-3 Days                    
                    
                
                    
                        Lead Time                    
                        
                        2-3 Days                    
                    
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                        £0.57                    
                    
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                        DF3-SSA4-P-A29-5.5 x 50                                                    
                                            
                                    
                        DF3-SSA4-P-A29-5.5 x 35                                                    
                                            
                                    
                        DF3-SSA4-P-A29-5.5 x 75                                                    
                                            
                        
    
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                        Key Features                    
                                    
                        Specification                    
                                    
                        Capacity                    
                                    
                        Performance                    
                                    
                        Installation                    
                                    
                        Downloads                    
                            Description
                    Low profile stainless steel fasteners for use in single skin sheeting, facade and rainscreens and flashing / trim detail applications.
Features & Benefits
                    - A4/316 stainless steel for corrosion resistance
- Low profile head to complement the best in modern construction techniques
- Specialist RedDrive installation tool for optimum install efficiency
- Supplied pre-assembled with a 29mm aluminium / EPDM bonded sealing washer
Application
                    - For mechanically fixing components of steel, aluminium and metal framing systems
- For mechanically fixing metal sheeting systems to light metal purlins and rails
                            Fastener Material                        
                        Fastener
                                    Austenitic Stainless Steel A4 Grade (316)  with organic coating
                                Sealing Washer
                                    A29 Washer
                                
                            Durability Class                        
                        | 
                                            Years / Environment                                         | ||||||
|---|---|---|---|---|---|---|
| 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 | 25 | 25 | 0 | 
                        Dimensions                    
                    Diameter
                                    5.5 mm
                                Head Style
                                    Low profile pan, TX25 recess
                                
                            Drilling Capacity                        
                        steel
                                
                            1.2 mm
                                3 mm
                            
                            Fastener Material                        
                        Fastener
                                    Austenitic Stainless Steel A4 Grade (316)  with organic coating
                                Sealing Washer
                                    A29 Washer
                                
                            Durability Class                        
                        | 
                                            Years / Environment                                         | ||||||
|---|---|---|---|---|---|---|
| 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 | 25 | 25 | 0 | 
                        Dimensions                    
                    Diameter
                                    5.5 mm
                                Length (mm)
                                    50 mm
                                Effective Thread Length (Min)
                                    0 mm
                                Effective Thread Length (Max)
                                    29 mm
                                Head Style
                                    Low profile pan, TX25 recess
                                
                            Drilling Capacity                        
                        Steel
                                
                            1.2 mm
                                3 mm
                            
                            Fastener Material                        
                        Fastener
                                    Austenitic Stainless Steel A4 Grade (316)  with organic coating
                                Sealing Washer
                                    A29 Washer
                                
                            Durability Class                        
                        | 
                                            Years / Environment                                         | ||||||
|---|---|---|---|---|---|---|
| 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 | 25 | 25 | 0 | 
                        Dimensions                    
                    Diameter
                                    5.5 mm
                                Length (mm)
                                    35 mm
                                Effective Thread Length (Min)
                                    0 mm
                                Effective Thread Length (Max)
                                    7 mm
                                Head Style
                                    Low profile pan, TX25 recess
                                
                            Drilling Capacity                        
                        Steel
                                
                            1.2 mm
                                3 mm
                            
                            Fastener Material                        
                        Fastener
                                    Austenitic Stainless Steel A4 Grade (316)  with organic coating
                                Sealing Washer
                                    A29 Washer
                                
                            Durability Class                        
                        | 
                                            Years / Environment                                         | ||||||
|---|---|---|---|---|---|---|
| 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 | 25 | 25 | 0 | 
                        Dimensions                    
                    Diameter
                                    5.5 mm
                                Length (mm)
                                    75 mm
                                Effective Thread Length (Min)
                                    0 mm
                                Effective Thread Length (Max)
                                    54 mm
                                Head Style
                                    Low profile pan, TX25 recess
                                
                            Drilling Capacity                        
                        Steel
                                
                            1.2 mm
                                3 mm
                            
            Build-up        
        
    
            Effective thread length        
        
    
                        Fastener Shear Performance VR,K                    
                    | Substrate Steel | 1.2 mm | 
| Steel | |
| 0.5 mm | 1.97 kN | 
                        Fastener pull-out performance                    
                    | NR,II,K (Tensile - Pull-out) | 1.2mm Steel: 1.43 kN | 
| 2mm Steel: 2.62 kN | |
| 3mm Steel: 4.76 kN | 
                        Fastener Pullover Performance NR,K                    
                    | Substrate Steel | A29 Washer | 
| Steel | 3 mm | 
| 0.5 mm | 3.81 kN | 
| 0.7 mm | 3.94 kN | 
                        Fastener Shear Performance VR,K                    
                    | Substrate Steel | 1.2 mm | 
| Steel | |
| 0.5 mm | 1.97 kN | 
                        Fastener pull-out performance                    
                    | NR,II,K (Tensile - Pull-out) | 1.2mm Steel: 1.43 kN | 
| 2mm Steel: 2.62 kN | |
| 3mm Steel: 4.76 kN | 
                        Fastener Pullover Performance NR,K                    
                    | Substrate Steel | A29 Washer | 
| Steel | 3 mm | 
| 0.5 mm | 3.81 kN | 
| 0.7 mm | 3.94 kN | 
                        Fastener Shear Performance VR,K                    
                    | Substrate Steel | 1.2 mm | 
| Steel | |
| 0.5 mm | 1.97 kN | 
                        Fastener pull-out performance                    
                    | NR,II,K (Tensile - Pull-out) | 1.2mm Steel: 1.43 kN | 
| 2mm Steel: 2.62 kN | |
| 3mm Steel: 4.76 kN | 
                        Fastener Pullover Performance NR,K                    
                    | Substrate Steel | A29 Washer | 
| Steel | 3 mm | 
| 0.5 mm | 3.81 kN | 
| 0.7 mm | 3.94 kN | 
                        Fastener Shear Performance VR,K                    
                    | Substrate Steel | 1.2 mm | 
| Steel | |
| 0.5 mm | 1.97 kN | 
                        Fastener pull-out performance                    
                    | NR,II,K (Tensile - Pull-out) | 1.2mm Steel: 1.43 kN | 
| 2mm Steel: 2.62 kN | |
| 3mm Steel: 4.76 kN | 
                        Fastener Pullover Performance NR,K                    
                    | Substrate Steel | A29 Washer | 
| Steel | 3 mm | 
| 0.5 mm | 3.81 kN | 
| 0.7 mm | 3.94 kN | 
                        Installation and handling                    
                    | Installation tool | Variable speed electric screw gun | 
| Installation drive | Fixfast RedDrive | 
| 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
                    Low profile stainless steel fasteners for use in single skin sheeting, facade and rainscreens and flashing / trim detail applications.
Features & Benefits
                    - A4/316 stainless steel for corrosion resistance
- Low profile head to complement the best in modern construction techniques
- Specialist RedDrive installation tool for optimum install efficiency
- Supplied pre-assembled with a 29mm aluminium / EPDM bonded sealing washer
Application
                    - For mechanically fixing components of steel, aluminium and metal framing systems
- For mechanically fixing metal sheeting systems to light metal purlins and rails
                                Specification                            
                            
                               
                           
                            
                               
                           
                        
                            Fastener Material                        
                        Fastener
                                    Austenitic Stainless Steel A4 Grade (316)  with organic coating
                                Sealing Washer
                                    A29 Washer
                                
                            Durability Class                        
                        | 
                                            Years / Environment                                         | ||||||
|---|---|---|---|---|---|---|
| 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 | 25 | 25 | 0 | 
                        Dimensions                    
                    Diameter
                                    5.5 mm
                                Head Style
                                    Low profile pan, TX25 recess
                                
                            Drilling Capacity                        
                        steel
                                
                            1.2 mm
                                3 mm
                            
                            Fastener Material                        
                        Fastener
                                    Austenitic Stainless Steel A4 Grade (316)  with organic coating
                                Sealing Washer
                                    A29 Washer
                                
                            Durability Class                        
                        | 
                                            Years / Environment                                         | ||||||
|---|---|---|---|---|---|---|
| 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 | 25 | 25 | 0 | 
                        Dimensions                    
                    Diameter
                                    5.5 mm
                                Length (mm)
                                    50 mm
                                Effective Thread Length (Min)
                                    0 mm
                                Effective Thread Length (Max)
                                    29 mm
                                Head Style
                                    Low profile pan, TX25 recess
                                
                            Drilling Capacity                        
                        Steel
                                
                            1.2 mm
                                3 mm
                            
                            Fastener Material                        
                        Fastener
                                    Austenitic Stainless Steel A4 Grade (316)  with organic coating
                                Sealing Washer
                                    A29 Washer
                                
                            Durability Class                        
                        | 
                                            Years / Environment                                         | ||||||
|---|---|---|---|---|---|---|
| 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 | 25 | 25 | 0 | 
                        Dimensions                    
                    Diameter
                                    5.5 mm
                                Length (mm)
                                    35 mm
                                Effective Thread Length (Min)
                                    0 mm
                                Effective Thread Length (Max)
                                    7 mm
                                Head Style
                                    Low profile pan, TX25 recess
                                
                            Drilling Capacity                        
                        Steel
                                
                            1.2 mm
                                3 mm
                            
                            Fastener Material                        
                        Fastener
                                    Austenitic Stainless Steel A4 Grade (316)  with organic coating
                                Sealing Washer
                                    A29 Washer
                                
                            Durability Class                        
                        | 
                                            Years / Environment                                         | ||||||
|---|---|---|---|---|---|---|
| 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 | 25 | 25 | 0 | 
                        Dimensions                    
                    Diameter
                                    5.5 mm
                                Length (mm)
                                    75 mm
                                Effective Thread Length (Min)
                                    0 mm
                                Effective Thread Length (Max)
                                    54 mm
                                Head Style
                                    Low profile pan, TX25 recess
                                
                            Drilling Capacity                        
                        Steel
                                
                            1.2 mm
                                3 mm
                            
                                Capacity                            
                            
                               
                           
                            
                               
                           
                        
            Build-up        
        
    
            Effective thread length        
        
    
                                Performance                            
                            
                               
                           
                            
                               
                           
                        
                        Fastener Shear Performance VR,K                    
                    | Substrate Steel | 1.2 mm | 
| Steel | |
| 0.5 mm | 1.97 kN | 
                        Fastener pull-out performance                    
                    | NR,II,K (Tensile - Pull-out) | 1.2mm Steel: 1.43 kN | 
| 2mm Steel: 2.62 kN | |
| 3mm Steel: 4.76 kN | 
                        Fastener Pullover Performance NR,K                    
                    | Substrate Steel | A29 Washer | 
| Steel | 3 mm | 
| 0.5 mm | 3.81 kN | 
| 0.7 mm | 3.94 kN | 
                        Fastener Shear Performance VR,K                    
                    | Substrate Steel | 1.2 mm | 
| Steel | |
| 0.5 mm | 1.97 kN | 
                        Fastener pull-out performance                    
                    | NR,II,K (Tensile - Pull-out) | 1.2mm Steel: 1.43 kN | 
| 2mm Steel: 2.62 kN | |
| 3mm Steel: 4.76 kN | 
                        Fastener Pullover Performance NR,K                    
                    | Substrate Steel | A29 Washer | 
| Steel | 3 mm | 
| 0.5 mm | 3.81 kN | 
| 0.7 mm | 3.94 kN | 
                        Fastener Shear Performance VR,K                    
                    | Substrate Steel | 1.2 mm | 
| Steel | |
| 0.5 mm | 1.97 kN | 
                        Fastener pull-out performance                    
                    | NR,II,K (Tensile - Pull-out) | 1.2mm Steel: 1.43 kN | 
| 2mm Steel: 2.62 kN | |
| 3mm Steel: 4.76 kN | 
                        Fastener Pullover Performance NR,K                    
                    | Substrate Steel | A29 Washer | 
| Steel | 3 mm | 
| 0.5 mm | 3.81 kN | 
| 0.7 mm | 3.94 kN | 
                        Fastener Shear Performance VR,K                    
                    | Substrate Steel | 1.2 mm | 
| Steel | |
| 0.5 mm | 1.97 kN | 
                        Fastener pull-out performance                    
                    | NR,II,K (Tensile - Pull-out) | 1.2mm Steel: 1.43 kN | 
| 2mm Steel: 2.62 kN | |
| 3mm Steel: 4.76 kN | 
                        Fastener Pullover Performance NR,K                    
                    | Substrate Steel | A29 Washer | 
| Steel | 3 mm | 
| 0.5 mm | 3.81 kN | 
| 0.7 mm | 3.94 kN | 
                                Installation                            
                            
                               
                           
                            
                               
                           
                        
                        Installation and handling                    
                    | Installation tool | Variable speed electric screw gun | 
| Installation drive | Fixfast RedDrive | 
| 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
    
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