Wood screw Ø10X140, Carbon Steel

The Strofix wood screw Ø10 × 140 is a carbon steel screw with a special 20 μm multilayer C4 EVO coating and epoxy resin surface treatment, designed for fastening metal sheets and brackets to wood in outdoor environments. The screw is supplied with an integrated 4 mm nylon washer. Available unpainted or in three RAL colours: RAL 9005 (jet black), RAL 7016 (anthracite grey), or RAL 8019 (grey brown). Total length 140 mm, shaft diameter 10 mm, thread length 110 mm (b). Pre-drilling in wood: 0.6 × Ø (6 mm pilot hole recommended).

The wood screw provides a direct metal-to-wood fixing for railing brackets, glass canopy support brackets, and other structural metalwork mounted on wooden substrates. The C4 EVO multilayer coating provides high outdoor corrosion resistance, making the screw suitable for exposed exterior installations. The three RAL colours match common façade and bracket finishes: black, anthracite and grey brown. The integrated nylon washer provides a seal between the screw head and the metal surface, preventing water ingress at the fixing point.

Select the RAL colour in the dropdown at order time to match the bracket or component finish.

Use cases:

• Fastening glass canopy brackets to wooden structural members
• Securing railing post base plates to timber decks with a colour-matched fixing
• Metal-to-wood fixing for French balcony brackets on timber-framed facades
• Outdoor railing and balustrade bracket mounting on wooden substrates
• Any exterior metal-to-wood structural connection requiring corrosion-resistant colour-matched screws

FAQ:

What is the screw material?

The screw is carbon steel with a C4 EVO multilayer coating (20 μm) and epoxy resin surface treatment. It is not stainless steel – the corrosion protection comes from the coating rather than the base material.

What RAL colours are available?

Three colours: RAL 9005 (jet black), RAL 7016 (anthracite grey), and RAL 8019 (grey brown). These match common façade and bracket finishes.

What is the C4 EVO coating?

C4 EVO is a multilayer corrosion protection coating that provides high resistance to outdoor weathering. The "C4" designation refers to a high corrosion class suitable for exterior environments. The coating is topped with an epoxy resin surface treatment in the selected RAL colour.

What are the screw dimensions?

Total length is 140 mm (L), shaft diameter is 10 mm (d1), and thread length is 110 mm (b). Pre-drill the pilot hole at 0.6 × Ø (6 mm) in the timber.

Is a washer included?

Yes. The screw includes an integrated 4 mm nylon washer that seals between the screw head and the metal surface, preventing water ingress at the fixing point.

How does this differ from the double-thread hanger bolt?

The double thread is screwed into the timber by its wood-screw end; the bracket sits on the protruding machine thread and is tightened with a washer and nut. This wood screw goes through the bracket straight into the timber – no nut is needed. Choose by how the bracket is fixed: on a stud with a nut, or screwed straight through.

About Anchors & Screws

Anchors and screws fix glass adaptors, French balcony holders, brackets, railing posts and other hardware to the building – to concrete, masonry, insulated façades or timber.

The range covers S235 steel anchor rods (Ø16 mm with an internal M8 and Ø20 mm with an internal M10 thread, 220–400 mm) for chemical anchoring, a zinc-plated anchor sleeve M10 × 80 mm, a PVC spacer sleeve for fixings through insulation, AISI 304 threaded rods and studs (M10 × 200 threaded rod, M10 × 50 set screw, M8 × 60 and M10 × 100 double threads for timber), DIN 912 screws, DIN 917 cup nuts, flat washers, and wood screws Ø8 and Ø10 mm in AISI 316 or coated carbon steel in RAL colours.

The right fastener depends on the substrate, the façade build-up, the thread size of the fitting and the load.