Product Description
Fixings that quietly matter on a CCTV install: TIMCO Velocity 3.5 × 40mm screws are the general-purpose wood screw many installers keep on the van for mounting brackets, junction boxes and timber backing plates before a camera goes up.
Why installers pick this size
The 40mm length suits medium-depth timber fixings — enough grip for a bracket into a joist or batten without punching through thin boards. Diameter is 3.5mm, matched to typical bracket fixing holes.
Build and finish
- Countersunk head sits flush, so camera mounts and enclosure plates sit flat against the surface rather than standing proud on a screw head
- Pozi drive recess reduces cam-out, which matters when you're driving a run of these overhead on a ladder with one hand on the driver
- Yellow zinc plated steel gives corrosion resistance for interior fixing work
- Suited to timber, chipboard and general fixing rather than masonry or metal
Typical use on a job
On a CCTV or access-control fit-out these get used for securing wooden mounting battens, cable trunking clips, and internal enclosure backboards ahead of camera and NVR installation. They're an interior fixing — for exterior masonry mounts you'd pair them with wall plugs rated for the substrate, not use them alone into brick or block.
Stocked for trade buyers who need a reliable general-purpose screw alongside their camera and cabling order rather than a separate hardware-shop trip.
Specifications
- Brand
- TIMCO
- Dimensions
- 3.5 × 40 mm
- Material
- Zinc
- Colour
- Yellow
Technical Specifications
Frequently Asked Questions
What is the 3.5 x 40mm size on this TIMCO Velocity screw?
3.5mm refers to the screw diameter and 40mm to its length, sized for medium-depth timber fixings.
Can these screws be used directly into masonry walls?
The source specifies suitability for timber, chipboard and general fixing — for masonry you'd need an appropriate wall plug, as that's not covered here.
Why does the head sit flush after fitting?
It has a countersunk head, designed to sit flush with the wood surface for a clean finish.
What driver do these screws need?
They use a Pozi drive recess, which improves driver grip and reduces cam-out during installation.
