DrillFastĀ® A4 stainless low profile light steel panel fastener, no washer
    A4/316 grade stainless steel low profile composite panel fastener for fixing to light section steel
No sealing washer, usually used for internal applications or where there is no weatherseal required.
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                Product Code            
            
                
                    DF3-SSA4-P-HT-5.5
                
                
                    
                
            
        
    
                    
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                        DF3-SSA4-P-HT-5.5 x 190                                                    
                                            
                                    
                        DF3-SSA4-P-HT-5.5 x 240                                                    
                                            
                                    
                        DF3-SSA4-P-HT-5.5 x 155                                                    
                                            
                                    
                        DF3-SSA4-P-HT-5.5 x 115                                                    
                                            
                        
    
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                        Key Features                    
                                    
                        Specification                    
                                    
                        Capacity                    
                                    
                        Performance                    
                                    
                        Installation                    
                                    
                        Downloads                    
                            Description
                    Low profile stainless steel high thread fasteners for fixing composite panel systems.
Features & Benefits
                    - High thread provides optimal clamping force to top sheet
- A4/316 grade stainless steel for corrosion resistance
- Free spin zone prevents thread strip out under normal installation conditions
- No sealing washer - when a weatherseal is not required, often in secret fix or internal applications
Application
                    - For mechanically fixing composite panel systems to light metal purlins and rails, and timber
                            Fastener Material                        
                        Fastener
                                    Austenitic Stainless Steel A4 Grade (316)  with organic coating
                                Sealing Washer
                                    No 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
                                    No 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)
                                    190 mm
                                Effective Thread Length (Min)
                                    126 mm
                                Effective Thread Length (Max)
                                    167 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
                                    No 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)
                                    240 mm
                                Effective Thread Length (Min)
                                    136 mm
                                Effective Thread Length (Max)
                                    217 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
                                    No 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)
                                    155 mm
                                Effective Thread Length (Min)
                                    88 mm
                                Effective Thread Length (Max)
                                    134 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
                                    No 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)
                                    115 mm
                                Effective Thread Length (Min)
                                    48 mm
                                Effective Thread Length (Max)
                                    94 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 Composite panel | 1.2 mm | 
| Steel | |
| 100 mm | 0.98 kN | 
                        Fastener pull-out performance                    
                    | NR,II,K (Tensile - Pull-out) | 1.2mm Steel: 1.43 kN | 
| 2mm Steel: 2.75 kN | |
| 3mm Steel: 4.9 kN | |
| Softwood C16: 2.68 kN | 
                        Fastener Pullover Performance NR,K                    
                    | Substrate Steel | S15 washer | 
| Steel | 3 mm | 
| 0.5 mm | 3.28 kN | 
                        Fastener Shear Performance VR,K                    
                    | Substrate Composite panel | 1.2 mm | 
| Steel | |
| 100 mm | 0.98 kN | 
                        Fastener pull-out performance                    
                    | NR,II,K (Tensile - Pull-out) | 1.2mm Steel: 1.43 kN | 
| 2mm Steel: 2.75 kN | |
| 3mm Steel: 4.9 kN | |
| Softwood C16: 2.68 kN | 
                        Fastener Pullover Performance NR,K                    
                    | Substrate Steel | S15 washer | 
| Steel | 3 mm | 
| 0.5 mm | 3.28 kN | 
                        Fastener Shear Performance VR,K                    
                    | Substrate Composite panel | 1.2 mm | 
| Steel | |
| 100 mm | 0.98 kN | 
                        Fastener pull-out performance                    
                    | NR,II,K (Tensile - Pull-out) | 1.2mm Steel: 1.43 kN | 
| 2mm Steel: 2.75 kN | |
| 3mm Steel: 4.9 kN | |
| Softwood C16: 2.68 kN | 
                        Fastener Pullover Performance NR,K                    
                    | Substrate Steel | S15 washer | 
| Steel | 3 mm | 
| 0.5 mm | 3.28 kN | 
                        Fastener Shear Performance VR,K                    
                    | Substrate Composite panel | 1.2 mm | 
| Steel | |
| 100 mm | 0.98 kN | 
                        Fastener pull-out performance                    
                    | NR,II,K (Tensile - Pull-out) | 1.2mm Steel: 1.43 kN | 
| 2mm Steel: 2.75 kN | |
| 3mm Steel: 4.9 kN | |
| Softwood C16: 2.68 kN | 
                        Fastener Pullover Performance NR,K                    
                    | Substrate Steel | S15 washer | 
| Steel | 3 mm | 
| 0.5 mm | 3.28 kN | 
                        Fastener Shear Performance VR,K                    
                    | Substrate Composite panel | 1.2 mm | 
| Steel | |
| 100 mm | 0.98 kN | 
                        Fastener pull-out performance                    
                    | NR,II,K (Tensile - Pull-out) | 1.2mm Steel: 1.43 kN | 
| 2mm Steel: 2.75 kN | |
| 3mm Steel: 4.9 kN | |
| Softwood C16: 2.68 kN | 
                        Fastener Pullover Performance NR,K                    
                    | Substrate Steel | S15 washer | 
| Steel | 3 mm | 
| 0.5 mm | 3.28 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 high thread fasteners for fixing composite panel systems.
Features & Benefits
                    - High thread provides optimal clamping force to top sheet
- A4/316 grade stainless steel for corrosion resistance
- Free spin zone prevents thread strip out under normal installation conditions
- No sealing washer - when a weatherseal is not required, often in secret fix or internal applications
Application
                    - For mechanically fixing composite panel systems to light metal purlins and rails, and timber
                                Specification                            
                            
                               
                           
                            
                               
                           
                        
                            Fastener Material                        
                        Fastener
                                    Austenitic Stainless Steel A4 Grade (316)  with organic coating
                                Sealing Washer
                                    No 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
                                    No 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)
                                    190 mm
                                Effective Thread Length (Min)
                                    126 mm
                                Effective Thread Length (Max)
                                    167 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
                                    No 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)
                                    240 mm
                                Effective Thread Length (Min)
                                    136 mm
                                Effective Thread Length (Max)
                                    217 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
                                    No 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)
                                    155 mm
                                Effective Thread Length (Min)
                                    88 mm
                                Effective Thread Length (Max)
                                    134 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
                                    No 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)
                                    115 mm
                                Effective Thread Length (Min)
                                    48 mm
                                Effective Thread Length (Max)
                                    94 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 Composite panel | 1.2 mm | 
| Steel | |
| 100 mm | 0.98 kN | 
                        Fastener pull-out performance                    
                    | NR,II,K (Tensile - Pull-out) | 1.2mm Steel: 1.43 kN | 
| 2mm Steel: 2.75 kN | |
| 3mm Steel: 4.9 kN | |
| Softwood C16: 2.68 kN | 
                        Fastener Pullover Performance NR,K                    
                    | Substrate Steel | S15 washer | 
| Steel | 3 mm | 
| 0.5 mm | 3.28 kN | 
                        Fastener Shear Performance VR,K                    
                    | Substrate Composite panel | 1.2 mm | 
| Steel | |
| 100 mm | 0.98 kN | 
                        Fastener pull-out performance                    
                    | NR,II,K (Tensile - Pull-out) | 1.2mm Steel: 1.43 kN | 
| 2mm Steel: 2.75 kN | |
| 3mm Steel: 4.9 kN | |
| Softwood C16: 2.68 kN | 
                        Fastener Pullover Performance NR,K                    
                    | Substrate Steel | S15 washer | 
| Steel | 3 mm | 
| 0.5 mm | 3.28 kN | 
                        Fastener Shear Performance VR,K                    
                    | Substrate Composite panel | 1.2 mm | 
| Steel | |
| 100 mm | 0.98 kN | 
                        Fastener pull-out performance                    
                    | NR,II,K (Tensile - Pull-out) | 1.2mm Steel: 1.43 kN | 
| 2mm Steel: 2.75 kN | |
| 3mm Steel: 4.9 kN | |
| Softwood C16: 2.68 kN | 
                        Fastener Pullover Performance NR,K                    
                    | Substrate Steel | S15 washer | 
| Steel | 3 mm | 
| 0.5 mm | 3.28 kN | 
                        Fastener Shear Performance VR,K                    
                    | Substrate Composite panel | 1.2 mm | 
| Steel | |
| 100 mm | 0.98 kN | 
                        Fastener pull-out performance                    
                    | NR,II,K (Tensile - Pull-out) | 1.2mm Steel: 1.43 kN | 
| 2mm Steel: 2.75 kN | |
| 3mm Steel: 4.9 kN | |
| Softwood C16: 2.68 kN | 
                        Fastener Pullover Performance NR,K                    
                    | Substrate Steel | S15 washer | 
| Steel | 3 mm | 
| 0.5 mm | 3.28 kN | 
                        Fastener Shear Performance VR,K                    
                    | Substrate Composite panel | 1.2 mm | 
| Steel | |
| 100 mm | 0.98 kN | 
                        Fastener pull-out performance                    
                    | NR,II,K (Tensile - Pull-out) | 1.2mm Steel: 1.43 kN | 
| 2mm Steel: 2.75 kN | |
| 3mm Steel: 4.9 kN | |
| Softwood C16: 2.68 kN | 
                        Fastener Pullover Performance NR,K                    
                    | Substrate Steel | S15 washer | 
| Steel | 3 mm | 
| 0.5 mm | 3.28 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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