TIMCO Velocity Wood Screws 3.5x40mm Countersunk Pozi Yellow Zinc

A fixing screw, not a CCTV component — but one you'll reach for on almost every install where a bracket, junction box or trunking goes onto timber rather than masonry.

What it is

TIMCO Velocity 3.5 × 40mm wood screw. Countersunk head, Pozi drive, yellow zinc plated steel finish.

What each spec means on site

• 3.5mm diameter, 40mm length — a medium-depth fixing, suited to securing boards, fittings or mounting plates into timber without over-penetrating.
• Countersunk head — sits flush once driven, so a camera mounting plate or bracket seats flat against the surface.
• Pozi drive — the recess is shaped to reduce cam-out, so the driver bit stays engaged under load from a screwdriver or drill.
• Yellow zinc plated steel — plating gives corrosion resistance for interior fixing and installation work.

Where it's suited

It is not specified for masonry, brick, block or metal, so don't use it as a substitute for a masonry or self-tapping metal screw on those substrates.

On a CCTV job

Useful for fixing wooden trunking covers, timber-mounted brackets, or securing a junction box enclosure to a wooden fascia board during a camera or recorder install.