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- DECK FASTENERS
- COBRA® stainless steel screw for wooden joist
COBRA® stainless steel screw for wooden joist
A stainless steel wood screw for decking
- A.: Deep Torx recess to prevent bit rejection and slippage
- B.: Notches under the head to lock in at required depth.
- C.: Spiral top to facilitate the penetration of the screw in the wood
- D.: Sharp point to reduce wood splitting
- E.: Razor-sharp thread for better penetration into wood
- AISI304 stainless steel screws
A self-drilling stainless steel screw for easy installation
The COBRA® self-drilling stainless steel screw has been developed to make it easier to attach deck boards to wooden joists. The screw head has a deep Torx recess to prevent losing the screw head and slippage.
Made of AISI304 stainless steel (A2), Cobra screws fix and holds your decking efficiently and durably.
Cobra screws could be used to fix all types of wooden deck boards. For very high density wood species, predrilling is recommended.
5x60mm
6x70mm
T30 for M6 screws
5x50 mm (500 pcs) + 4 spacers + 1 drill bit
5x60 mm (500 pcs) + 4 spacers + drill bit
5x60 mm (200 pcs)
6x70 mm (100 pcs)
Adapted to all uses
The length of the screw should be 2.5 times the thickness of the decking. 3 screw sizes are available, to match with the majority of decking boards available in the market
|
5x50mm |
Decking between 21 and 23 mm thickness |
|
5x60mm |
Decking between 24 and 27 mm thickness |
|
6x70mm |
Decking up to 28 mm thickness |
We strongly recommend pre-drilling very dense hardwoods (over 900 kg/m3)
|
Structure |
Hradwood wood |
Softwood |
Aluminium |
Steel |
|
Use |
✔ |
✔ |
- |
- |
Fixing to wood joists
Two screws are required on each joist.
When using our Cobra Smart Bit drill and countersink tool, make sure to choose the right drill diameter. The top of the countersink head screw must be slightly lower than the upper face of the board (2mm)
The fixing distance should be located at 1.5 to 2 cm from the board side edge, and less than 5 cm from the end edge to avoid splitting the wood.
Screw dimensions
|
Name |
Size |
A (mm) |
L (mm) |
U (mm) |
D (mm) |
dr (mm) |
Torx |
|
0601 - 0799 |
M5x50 |
8 |
50 |
4 |
5 |
4 |
T25 |
|
0602 - 0966 |
M5x60 |
8 |
60 |
8 |
5 |
4 |
T25 |
|
0613 |
M6x70 |
10 |
70 |
10 |
6 |
5 |
T30 |
