Carpentry screws
in category: Carpentry screws
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A2 stainless steel decking screw TX25 5.0×40 mm – head with milling ribs – box of 100 pcs
A2 stainless steel decking screw TX25 5.0×50 mm – head with milling ribs – box of 100 pcs
A2 stainless steel decking screw TX25 5.0×60 mm – head with milling ribs – box of 100 pcs
A2 stainless steel decking screw TX25 5.0×70 mm – head with milling ribs – box of 100 pcs
A2 stainless steel decking screw TX25 5.0×80 mm – head with milling ribs – box of 100 pcs
A2 stainless steel timber construction screw TX10 3.0×20 mm – countersunk head, full thread – box of 500 pcs
A2 stainless steel timber construction screw TX10 3.0×25 mm – countersunk head, full thread – box of 500 pcs
A2 stainless steel timber construction screw TX10 3.0×30 mm – countersunk head, full thread – box of 500 pcs
A2 stainless steel timber construction screw TX20 4.0×20 mm – countersunk head, full thread – box of 500 pcs
A2 stainless steel timber construction screw TX20 4.0×30 mm – countersunk head, full thread – box of 500 pcs
A2 stainless steel timber construction screw TX20 4.0×40 mm – countersunk head, full thread – box of 200 pcs
A2 stainless steel timber construction screw TX25 5.0×20 mm – countersunk head, full thread – box of 500 pcs
A2 stainless steel timber construction screw TX25 5.0×30 mm – countersunk head, full thread – box of 500 pcs
A2 stainless steel timber construction screw TX25 5.0×40 mm – countersunk head, full thread – box of 200 pcs
Screws for timber structures: decking and construction screws
This category contains stainless steel screws for timber structures. You will find decking screws for fixing boards to timber substructures, and timber construction screws with full or partial thread. The Screws range is intended for installers and builders who need corrosion-resistant fasteners in diameters from 3.0 to 6.0 mm.
What you will find in this category
- Decking screws: A2 or C1 (AISI 410) stainless steel, 5.0 mm diameter, 40-80 mm long. TX25 drive, Ø8 mm decorative head, square thread, cut point. Boxes of 100 pcs.
- Fully threaded timber construction screws: A2 stainless steel, from 3.0 × 20 mm to 5.0 × 40 mm. TX10, TX20 or TX25 drive, reinforced countersunk head. Packs of 200 or 500 pcs.
- Partially threaded timber construction screws: A2 stainless steel, from 3.0 × 25 mm to 6.0 × 100 mm. Partial thread 18-70 mm. Packs of 100, 200 or 500 pcs.
How to choose
- Material: A2 stainless steel is available for all types. C1 (AISI 410), a martensitic stainless steel, is offered for decking screws.
- Diameter and length: Diameters are 3.0, 4.0, 5.0 and 6.0 mm. Lengths run from 20 to 100 mm. Match the length to the thickness of the parts you are joining.
- Thread: Choose full thread or partial thread. Partial thread lengths range from 18 to 70 mm.
- Drive: TX10 is used on 3.0 mm screws, TX20 on 4.0 mm and TX25 on 5.0 and 6.0 mm. Check that your bits match.
- Pack size: Packs hold 100, 200 or 500 pcs. Larger packs suit small screws used in volume.
Typical applications
Decking screws fix timber and composite decking boards to timber substructures. The decorative head sits flush with the board surface. Timber construction screws are used in timber structures, including solid and glued timber. Some fully threaded sizes are described as suitable for external applications.
Frequently asked questions
Do the decking screws need pre-drilling?
The product descriptions state that the cut point removes the need for pilot holes. The square thread with spiral milling reduces driving torque and the risk of the board splitting.
What is the difference between A2 and C1 decking screws?
Both are stainless steel. A2 is described as providing long-lasting corrosion resistance. C1 (AISI 410) is a hardened martensitic stainless steel with high corrosion resistance outdoors.
What corrosion resistance class do the timber construction screws have?
The A2 timber construction screws are listed as corrosion resistance class CRC II. Many descriptions refer to DIN EN 1993-1-4.
Not sure which size, thread or material suits your job? Contact our technical support and we will help you choose.