DrillFast® carbon light steel mainfix fastener, no washer
Carbon steel fastener for fixing to light section steel.
No sealing washer - when a weatherseal is not required, often in secret fix or internal applications.
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Certified by
Estimated lead times
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Estimated lead times
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Estimated lead times
1 Day
Estimated lead times
1 Day
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1 Day
Product Code
DF3-5.5
Lead Time
1 Day
Lead Time
1 Day
Lead Time
1 Day
Lead Time
1 Day
Lead Time
1 Day
Lead Time
1 Day
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Key Features
Specification
Capacity
Performance
Installation
Downloads
Description
Carbon steel self drilling fastener for fixing steel sheeting and brackets back to light steel
Features & Benefits
- Superior quality carbon steel
- Excellent drilling and tapping performance
- Consistently high pull-out and shear values
- Unique Enduroguard coating for excellent corrosion resistance
- No sealing washer - when a weatherseal is not required, often in secret fix or internal applications
Application
- For mechanically fixing metal sheeting systems to light metal purlins and rails
- For mechanically fixing components of steel and metal framing systems
Fastener Material
Fastener
Carbon steel case hardened with ml_organic coating
Sealing Washer
No washer
Durability Class
|
Years / Environment
|
|||||||
|---|---|---|---|---|---|---|---|
| Interior | Semi-interior | Rural | Urban | Industrial / Coastal | Marine | Swimming pools & Chemical plants | |
| Corrosivity Category | C1 | - | C2 | C3 | C4 | C5 | - |
| Carbon steel case hardened | 25 | 20 | 12 | 0 | 0 | 0 | 0 |
Dimensions
Diameter
5.5 mm
Head Style
Hexagon 8mm
Fastener Material
Fastener
Carbon steel case hardened with ml_organic coating
Sealing Washer
No washer
Durability Class
|
Years / Environment
|
|||||||
|---|---|---|---|---|---|---|---|
| Interior | Semi-interior | Rural | Urban | Industrial / Coastal | Marine | Swimming pools & Chemical plants | |
| Corrosivity Category | C1 | - | C2 | C3 | C4 | C5 | - |
| Carbon steel case hardened | 25 | 20 | 12 | 0 | 0 | 0 | 0 |
Dimensions
Diameter
5.5 mm
Length (mm)
45 mm
Effective Thread Length (Min)
0 mm
Effective Thread Length (Max)
30 mm
Head Style
Hexagon 8mm
Drilling Capacity
Steel
1.2 mm
3 mm
Fastener Material
Fastener
Carbon steel case hardened with ml_organic coating
Sealing Washer
No washer
Durability Class
|
Years / Environment
|
|||||||
|---|---|---|---|---|---|---|---|
| Interior | Semi-interior | Rural | Urban | Industrial / Coastal | Marine | Swimming pools & Chemical plants | |
| Corrosivity Category | C1 | - | C2 | C3 | C4 | C5 | - |
| Carbon steel case hardened | 25 | 20 | 12 | 0 | 0 | 0 | 0 |
Dimensions
Diameter
5.5 mm
Length (mm)
55 mm
Effective Thread Length (Min)
0 mm
Effective Thread Length (Max)
40 mm
Head Style
Hexagon 8mm
Drilling Capacity
Steel
1.2 mm
3 mm
Fastener Material
Fastener
Carbon steel case hardened with ml_organic coating
Sealing Washer
No washer
Durability Class
|
Years / Environment
|
|||||||
|---|---|---|---|---|---|---|---|
| Interior | Semi-interior | Rural | Urban | Industrial / Coastal | Marine | Swimming pools & Chemical plants | |
| Corrosivity Category | C1 | - | C2 | C3 | C4 | C5 | - |
| Carbon steel case hardened | 25 | 20 | 12 | 0 | 0 | 0 | 0 |
Dimensions
Diameter
5.5 mm
Length (mm)
100 mm
Effective Thread Length (Min)
40 mm
Effective Thread Length (Max)
85 mm
Head Style
Hexagon 8mm
Drilling Capacity
Steel
1.2 mm
3 mm
Fastener Material
Fastener
Carbon steel case hardened with ml_organic coating
Sealing Washer
No washer
Durability Class
|
Years / Environment
|
|||||||
|---|---|---|---|---|---|---|---|
| Interior | Semi-interior | Rural | Urban | Industrial / Coastal | Marine | Swimming pools & Chemical plants | |
| Corrosivity Category | C1 | - | C2 | C3 | C4 | C5 | - |
| Carbon steel case hardened | 25 | 20 | 12 | 0 | 0 | 0 | 0 |
Dimensions
Diameter
5.5 mm
Length (mm)
35 mm
Effective Thread Length (Min)
0 mm
Effective Thread Length (Max)
16 mm
Head Style
Hexagon 8mm
Drilling Capacity
Steel
1.2 mm
3 mm
Fastener Material
Fastener
Carbon steel case hardened with ml_organic coating
Sealing Washer
No washer
Durability Class
|
Years / Environment
|
|||||||
|---|---|---|---|---|---|---|---|
| Interior | Semi-interior | Rural | Urban | Industrial / Coastal | Marine | Swimming pools & Chemical plants | |
| Corrosivity Category | C1 | - | C2 | C3 | C4 | C5 | - |
| Carbon steel case hardened | 25 | 20 | 12 | 0 | 0 | 0 | 0 |
Dimensions
Diameter
5.5 mm
Length (mm)
75 mm
Effective Thread Length (Min)
0 mm
Effective Thread Length (Max)
60 mm
Head Style
Hexagon 8mm
Drilling Capacity
Steel
1.2 mm
3 mm
Fastener Material
Fastener
Carbon steel case hardened with ml_organic coating
Sealing Washer
No washer
Durability Class
|
Years / Environment
|
|||||||
|---|---|---|---|---|---|---|---|
| Interior | Semi-interior | Rural | Urban | Industrial / Coastal | Marine | Swimming pools & Chemical plants | |
| Corrosivity Category | C1 | - | C2 | C3 | C4 | C5 | - |
| Carbon steel case hardened | 25 | 20 | 12 | 0 | 0 | 0 | 0 |
Dimensions
Diameter
5.5 mm
Length (mm)
25 mm
Effective Thread Length (Min)
0 mm
Effective Thread Length (Max)
9 mm
Head Style
Hexagon 8mm
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 | 2.62 kN |
Fastener pull-out performance
| NR,II,K (Tensile - Pull-out) | 1.2mm Steel: 1.52 kN |
| 2mm Steel: 3.01 kN | |
| 3mm Steel: 5.42 kN |
Fastener Pullover Performance NR,K
|
Substrate
Steel
|
A15 Washer |
| Steel | 3 mm |
| 0.5 mm | 3.38 kN |
| 0.7 mm | 4.78 kN |
Fastener Shear Performance VR,K
|
Substrate
Steel
|
1.2 mm |
| Steel | |
| 0.5 mm | 2.62 kN |
Fastener pull-out performance
| NR,II,K (Tensile - Pull-out) | 1.2mm Steel: 1.52 kN |
| 2mm Steel: 3.01 kN | |
| 3mm Steel: 5.42 kN |
Fastener Pullover Performance NR,K
|
Substrate
Steel
|
A15 Washer |
| Steel | 3 mm |
| 0.5 mm | 3.38 kN |
| 0.7 mm | 4.78 kN |
Fastener Shear Performance VR,K
|
Substrate
Steel
|
1.2 mm |
| Steel | |
| 0.5 mm | 2.62 kN |
Fastener pull-out performance
| NR,II,K (Tensile - Pull-out) | 1.2mm Steel: 1.52 kN |
| 2mm Steel: 3.01 kN | |
| 3mm Steel: 5.42 kN |
Fastener Pullover Performance NR,K
|
Substrate
Steel
|
A15 Washer |
| Steel | 3 mm |
| 0.5 mm | 3.38 kN |
| 0.7 mm | 4.78 kN |
Fastener Shear Performance VR,K
|
Substrate
Steel
|
1.2 mm |
| Steel | |
| 0.5 mm | 2.62 kN |
Fastener pull-out performance
| NR,II,K (Tensile - Pull-out) | 1.2mm Steel: 1.52 kN |
| 2mm Steel: 3.01 kN | |
| 3mm Steel: 5.42 kN |
Fastener Pullover Performance NR,K
|
Substrate
Steel
|
A15 Washer |
| Steel | 3 mm |
| 0.5 mm | 3.38 kN |
| 0.7 mm | 4.78 kN |
Fastener Shear Performance VR,K
|
Substrate
Steel
|
1.2 mm |
| Steel | |
| 0.5 mm | 2.62 kN |
Fastener pull-out performance
| NR,II,K (Tensile - Pull-out) | 1.2mm Steel: 1.52 kN |
| 2mm Steel: 3.01 kN | |
| 3mm Steel: 5.42 kN |
Fastener Pullover Performance NR,K
|
Substrate
Steel
|
A15 Washer |
| Steel | 3 mm |
| 0.5 mm | 3.38 kN |
| 0.7 mm | 4.78 kN |
Fastener Shear Performance VR,K
|
Substrate
Steel
|
1.2 mm |
| Steel | |
| 0.5 mm | 2.62 kN |
Fastener pull-out performance
| NR,II,K (Tensile - Pull-out) | 1.2mm Steel: 1.52 kN |
| 2mm Steel: 3.01 kN | |
| 3mm Steel: 5.42 kN |
Fastener Pullover Performance NR,K
|
Substrate
Steel
|
A15 Washer |
| Steel | 3 mm |
| 0.5 mm | 3.38 kN |
| 0.7 mm | 4.78 kN |
Fastener Shear Performance VR,K
|
Substrate
Steel
|
1.2 mm |
| Steel | |
| 0.5 mm | 2.62 kN |
Fastener pull-out performance
| NR,II,K (Tensile - Pull-out) | 1.2mm Steel: 1.52 kN |
| 2mm Steel: 3.01 kN | |
| 3mm Steel: 5.42 kN |
Fastener Pullover Performance NR,K
|
Substrate
Steel
|
A15 Washer |
| Steel | 3 mm |
| 0.5 mm | 3.38 kN |
| 0.7 mm | 4.78 kN |
Installation and handling
| Installation tool | Variable speed electric screw gun |
| Installation drive | Fixfast YellowDrive socket |
| 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
Carbon steel self drilling fastener for fixing steel sheeting and brackets back to light steel
Features & Benefits
- Superior quality carbon steel
- Excellent drilling and tapping performance
- Consistently high pull-out and shear values
- Unique Enduroguard coating for excellent corrosion resistance
- No sealing washer - when a weatherseal is not required, often in secret fix or internal applications
Application
- For mechanically fixing metal sheeting systems to light metal purlins and rails
- For mechanically fixing components of steel and metal framing systems
Specification
Fastener Material
Fastener
Carbon steel case hardened with ml_organic coating
Sealing Washer
No washer
Durability Class
|
Years / Environment
|
|||||||
|---|---|---|---|---|---|---|---|
| Interior | Semi-interior | Rural | Urban | Industrial / Coastal | Marine | Swimming pools & Chemical plants | |
| Corrosivity Category | C1 | - | C2 | C3 | C4 | C5 | - |
| Carbon steel case hardened | 25 | 20 | 12 | 0 | 0 | 0 | 0 |
Dimensions
Diameter
5.5 mm
Head Style
Hexagon 8mm
Fastener Material
Fastener
Carbon steel case hardened with ml_organic coating
Sealing Washer
No washer
Durability Class
|
Years / Environment
|
|||||||
|---|---|---|---|---|---|---|---|
| Interior | Semi-interior | Rural | Urban | Industrial / Coastal | Marine | Swimming pools & Chemical plants | |
| Corrosivity Category | C1 | - | C2 | C3 | C4 | C5 | - |
| Carbon steel case hardened | 25 | 20 | 12 | 0 | 0 | 0 | 0 |
Dimensions
Diameter
5.5 mm
Length (mm)
45 mm
Effective Thread Length (Min)
0 mm
Effective Thread Length (Max)
30 mm
Head Style
Hexagon 8mm
Drilling Capacity
Steel
1.2 mm
3 mm
Fastener Material
Fastener
Carbon steel case hardened with ml_organic coating
Sealing Washer
No washer
Durability Class
|
Years / Environment
|
|||||||
|---|---|---|---|---|---|---|---|
| Interior | Semi-interior | Rural | Urban | Industrial / Coastal | Marine | Swimming pools & Chemical plants | |
| Corrosivity Category | C1 | - | C2 | C3 | C4 | C5 | - |
| Carbon steel case hardened | 25 | 20 | 12 | 0 | 0 | 0 | 0 |
Dimensions
Diameter
5.5 mm
Length (mm)
55 mm
Effective Thread Length (Min)
0 mm
Effective Thread Length (Max)
40 mm
Head Style
Hexagon 8mm
Drilling Capacity
Steel
1.2 mm
3 mm
Fastener Material
Fastener
Carbon steel case hardened with ml_organic coating
Sealing Washer
No washer
Durability Class
|
Years / Environment
|
|||||||
|---|---|---|---|---|---|---|---|
| Interior | Semi-interior | Rural | Urban | Industrial / Coastal | Marine | Swimming pools & Chemical plants | |
| Corrosivity Category | C1 | - | C2 | C3 | C4 | C5 | - |
| Carbon steel case hardened | 25 | 20 | 12 | 0 | 0 | 0 | 0 |
Dimensions
Diameter
5.5 mm
Length (mm)
100 mm
Effective Thread Length (Min)
40 mm
Effective Thread Length (Max)
85 mm
Head Style
Hexagon 8mm
Drilling Capacity
Steel
1.2 mm
3 mm
Fastener Material
Fastener
Carbon steel case hardened with ml_organic coating
Sealing Washer
No washer
Durability Class
|
Years / Environment
|
|||||||
|---|---|---|---|---|---|---|---|
| Interior | Semi-interior | Rural | Urban | Industrial / Coastal | Marine | Swimming pools & Chemical plants | |
| Corrosivity Category | C1 | - | C2 | C3 | C4 | C5 | - |
| Carbon steel case hardened | 25 | 20 | 12 | 0 | 0 | 0 | 0 |
Dimensions
Diameter
5.5 mm
Length (mm)
35 mm
Effective Thread Length (Min)
0 mm
Effective Thread Length (Max)
16 mm
Head Style
Hexagon 8mm
Drilling Capacity
Steel
1.2 mm
3 mm
Fastener Material
Fastener
Carbon steel case hardened with ml_organic coating
Sealing Washer
No washer
Durability Class
|
Years / Environment
|
|||||||
|---|---|---|---|---|---|---|---|
| Interior | Semi-interior | Rural | Urban | Industrial / Coastal | Marine | Swimming pools & Chemical plants | |
| Corrosivity Category | C1 | - | C2 | C3 | C4 | C5 | - |
| Carbon steel case hardened | 25 | 20 | 12 | 0 | 0 | 0 | 0 |
Dimensions
Diameter
5.5 mm
Length (mm)
75 mm
Effective Thread Length (Min)
0 mm
Effective Thread Length (Max)
60 mm
Head Style
Hexagon 8mm
Drilling Capacity
Steel
1.2 mm
3 mm
Fastener Material
Fastener
Carbon steel case hardened with ml_organic coating
Sealing Washer
No washer
Durability Class
|
Years / Environment
|
|||||||
|---|---|---|---|---|---|---|---|
| Interior | Semi-interior | Rural | Urban | Industrial / Coastal | Marine | Swimming pools & Chemical plants | |
| Corrosivity Category | C1 | - | C2 | C3 | C4 | C5 | - |
| Carbon steel case hardened | 25 | 20 | 12 | 0 | 0 | 0 | 0 |
Dimensions
Diameter
5.5 mm
Length (mm)
25 mm
Effective Thread Length (Min)
0 mm
Effective Thread Length (Max)
9 mm
Head Style
Hexagon 8mm
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 | 2.62 kN |
Fastener pull-out performance
| NR,II,K (Tensile - Pull-out) | 1.2mm Steel: 1.52 kN |
| 2mm Steel: 3.01 kN | |
| 3mm Steel: 5.42 kN |
Fastener Pullover Performance NR,K
|
Substrate
Steel
|
A15 Washer |
| Steel | 3 mm |
| 0.5 mm | 3.38 kN |
| 0.7 mm | 4.78 kN |
Fastener Shear Performance VR,K
|
Substrate
Steel
|
1.2 mm |
| Steel | |
| 0.5 mm | 2.62 kN |
Fastener pull-out performance
| NR,II,K (Tensile - Pull-out) | 1.2mm Steel: 1.52 kN |
| 2mm Steel: 3.01 kN | |
| 3mm Steel: 5.42 kN |
Fastener Pullover Performance NR,K
|
Substrate
Steel
|
A15 Washer |
| Steel | 3 mm |
| 0.5 mm | 3.38 kN |
| 0.7 mm | 4.78 kN |
Fastener Shear Performance VR,K
|
Substrate
Steel
|
1.2 mm |
| Steel | |
| 0.5 mm | 2.62 kN |
Fastener pull-out performance
| NR,II,K (Tensile - Pull-out) | 1.2mm Steel: 1.52 kN |
| 2mm Steel: 3.01 kN | |
| 3mm Steel: 5.42 kN |
Fastener Pullover Performance NR,K
|
Substrate
Steel
|
A15 Washer |
| Steel | 3 mm |
| 0.5 mm | 3.38 kN |
| 0.7 mm | 4.78 kN |
Fastener Shear Performance VR,K
|
Substrate
Steel
|
1.2 mm |
| Steel | |
| 0.5 mm | 2.62 kN |
Fastener pull-out performance
| NR,II,K (Tensile - Pull-out) | 1.2mm Steel: 1.52 kN |
| 2mm Steel: 3.01 kN | |
| 3mm Steel: 5.42 kN |
Fastener Pullover Performance NR,K
|
Substrate
Steel
|
A15 Washer |
| Steel | 3 mm |
| 0.5 mm | 3.38 kN |
| 0.7 mm | 4.78 kN |
Fastener Shear Performance VR,K
|
Substrate
Steel
|
1.2 mm |
| Steel | |
| 0.5 mm | 2.62 kN |
Fastener pull-out performance
| NR,II,K (Tensile - Pull-out) | 1.2mm Steel: 1.52 kN |
| 2mm Steel: 3.01 kN | |
| 3mm Steel: 5.42 kN |
Fastener Pullover Performance NR,K
|
Substrate
Steel
|
A15 Washer |
| Steel | 3 mm |
| 0.5 mm | 3.38 kN |
| 0.7 mm | 4.78 kN |
Fastener Shear Performance VR,K
|
Substrate
Steel
|
1.2 mm |
| Steel | |
| 0.5 mm | 2.62 kN |
Fastener pull-out performance
| NR,II,K (Tensile - Pull-out) | 1.2mm Steel: 1.52 kN |
| 2mm Steel: 3.01 kN | |
| 3mm Steel: 5.42 kN |
Fastener Pullover Performance NR,K
|
Substrate
Steel
|
A15 Washer |
| Steel | 3 mm |
| 0.5 mm | 3.38 kN |
| 0.7 mm | 4.78 kN |
Fastener Shear Performance VR,K
|
Substrate
Steel
|
1.2 mm |
| Steel | |
| 0.5 mm | 2.62 kN |
Fastener pull-out performance
| NR,II,K (Tensile - Pull-out) | 1.2mm Steel: 1.52 kN |
| 2mm Steel: 3.01 kN | |
| 3mm Steel: 5.42 kN |
Fastener Pullover Performance NR,K
|
Substrate
Steel
|
A15 Washer |
| Steel | 3 mm |
| 0.5 mm | 3.38 kN |
| 0.7 mm | 4.78 kN |
Installation
Installation and handling
| Installation tool | Variable speed electric screw gun |
| Installation drive | Fixfast YellowDrive socket |
| 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
