Product Description
Key specs
- Size: 3.5 × 45mm (diameter × length)
- Head: countersunk, for flush fitting
- Drive: Pozi recess
- Finish: yellow zinc plated steel
- Substrates: timber, chipboard and general fixing applications
Fixing brackets, back-boxes, junction boxes and enclosures to timber-based surfaces is a routine part of CCTV first-fix work — battens, joists, fascias and chipboard backing panels all need a screw that seats flush and drives cleanly on site.
Why the spec matters on install
The countersunk head sits flush once driven home, so bracket plates and enclosure lugs pull down tight against the timber without the head standing proud. The Pozi recess is designed to improve driver engagement over a plain slot, which counts when a fixing is being driven one-handed at height or in a loft void with limited access.
The yellow zinc plated steel finish gives the screw corrosion resistance for interior fixing work. At 45mm this sits between shorter and longer options in the range — TIMCO also lists a 50mm version — so it's worth checking reach against the substrate thickness before specifying for a given job.
Sold as TIMCO Velocity multi-purpose wood screws; no separate coach screw, self-tapper or masonry variant is described here.
Specifications
- Brand
- TIMCO
- Dimensions
- 3.5 × 45 mm
- Material
- Zinc
- Colour
- Yellow
Technical Specifications
Frequently Asked Questions
What head and drive type does this screw have?
Countersunk head with a Pozi drive recess, so it sits flush and takes a Pozi driver bit.
What materials is it designed to fix into?
Timber, chipboard and general construction materials, per TIMCO's spec for this screw.
What finish does it have, and is it suitable for outdoor use?
It has a yellow zinc plated finish for corrosion resistance; SOURCE describes it for interior construction and installation work.
Is a longer or shorter length available?
Yes — this is the 45mm option; a 50mm TIMCO Velocity screw is also referenced as an alternative length.
