TIMCO Velocity Wood Screws 3.5x45mm Countersunk Pozi Yellow Zinc

This is a 3.5 × 45mm TIMCO Velocity wood screw with a countersunk head, Pozi drive and yellow zinc plated finish — a fixing most installers will already recognise from mounting brackets, back-boxes and enclosures on timber-based surfaces.

Where it fits on a CCTV job

CCTV work isn't just cameras and cable — brackets, junction boxes and DVR/NVR enclosures often need fixing to timber battens, joists, fascias or chipboard backing panels before the electronics go on. This screw handles that supporting fixing work.

• Countersunk head sits flush, useful where a bracket plate or enclosure needs to sit tight against timber without the screw head standing proud.
• Pozi drive recess gives better driver engagement, which matters when working overhead or in tight loft/ceiling void access during an install.
• Yellow zinc plated steel offers corrosion resistance suited to interior fixing.
• 45mm length suits medium-depth fixing into timber and chipboard — shorter than the 50mm option where board thickness or joist depth doesn't need the extra reach.

Practical notes for buyers

This is a general fixing screw for timber and chipboard, not a masonry or external fixing — pair it with appropriate wall plugs or fixings if the substrate changes partway through a run. Keep a mixed stock of 45mm and 50mm lengths on the van so the right depth is on hand without over-driving into thin backing boards.