A4 stainless steel fastener for fixing to ultra heavy section steel, up to 25mm thick
No sealing washer - when a weatherseal is not required, often in secret fix or internal applications.
Estimated lead times
1 Day
Estimated lead times
1 Day
What applications can this be used for?This fastener is specially designed and manufactured for mechanically fixing steel sheeting systems to super heavy steel purlins and sections.
What material is this product made from?Highly durable A4 / 316 marine grade stainless steel with a carbon steel drill-point for ultimate drilling and tapping performance.
Is this available with washers?Yes, we can supply with an A4 grade stainless bonded washer, in 15mm / 19mm or aluminium 29mm
What steel thickness will this drill?The DF25-SSA4-6.3 x 75 fastener is rated for drilling steel from 8mm to 25mm
What warranty is available on this fastener?Find out about our warranty
What installation tools are required?A screwgun running an optimum 1800 rpm / 8mm Hex Greendrive
- For mechanically fixing steel sheeting systems to super heavy steel purlins and sections
|
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 |
|
Substrate
Steel
|
4 mm |
| Steel | |
| 0.5 mm | 2.02 kN |
| NR,II,K (Tensile - Pull-out) | 8mm Steel: 13.8 kN |
| 12mm Steel: 16.6 kN |
|
Substrate
Steel
|
S15 washer |
| Steel | 8 mm |
| 0.5 mm | 3.76 kN |
| 0.7 mm | 5.1 kN |
| Installation tool | Variable speed electric screw gun |
| Installation drive | Fixfast GreenDrive (8mm hex integral socket with retaining clip) |
| 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. |
What applications can this be used for?This fastener is specially designed and manufactured for mechanically fixing steel sheeting systems to super heavy steel purlins and sections.
What material is this product made from?Highly durable A4 / 316 marine grade stainless steel with a carbon steel drill-point for ultimate drilling and tapping performance.
Is this available with washers?Yes, we can supply with an A4 grade stainless bonded washer, in 15mm / 19mm or aluminium 29mm
What steel thickness will this drill?The DF25-SSA4-6.3 x 75 fastener is rated for drilling steel from 8mm to 25mm
What warranty is available on this fastener?Find out about our warranty
What installation tools are required?A screwgun running an optimum 1800 rpm / 8mm Hex Greendrive
- For mechanically fixing steel sheeting systems to super heavy steel purlins and sections
|
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 |
|
Substrate
Steel
|
4 mm |
| Steel | |
| 0.5 mm | 2.02 kN |
| NR,II,K (Tensile - Pull-out) | 8mm Steel: 13.8 kN |
| 12mm Steel: 16.6 kN |
|
Substrate
Steel
|
S15 washer |
| Steel | 8 mm |
| 0.5 mm | 3.76 kN |
| 0.7 mm | 5.1 kN |
| Installation tool | Variable speed electric screw gun |
| Installation drive | Fixfast GreenDrive (8mm hex integral socket with retaining clip) |
| 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. |
