Product Description
A small-gauge wood screw that CCTV installers keep in the kit bag for the fixings that aren't the camera itself.
What it's for
The TIMCO Velocity 3.5 × 20mm is a countersunk, Pozi-drive wood screw for timber, chipboard and other wood-based materials. On an install, that covers jobs like fixing cable clips or battens to a wooden fascia, or mounting a small enclosure onto a timber surface — general wood fixing rather than a specialist bracket screw.
Key specs
- Size: 3.5mm diameter × 20mm length
- Head: countersunk, sits flush with the surface once driven in
- Drive: Pozi recess (cross-shaped, designed to reduce the driver slipping out under torque)
- Finish: yellow zinc plated steel, chosen for corrosion resistance
- Materials: timber, chipboard and general wood-based fixing
Before you buy
Check the fixing depth you actually need. At 20mm long, this screw suits shallow timber fixings — thin boards or battens — rather than jobs needing a longer screw to bite into thicker material. Also confirm your driver bit matches Pozi, not Phillips, to avoid cam-out (the bit slipping under load).
This is a general carpentry and joinery screw rather than a CCTV-specific fixing, so it's worth keeping alongside proper masonry fixings if your job involves brick or block as well as timber.
Specifications
- Brand
- TIMCO
- Dimensions
- 3.5 × 20 mm
- Material
- Zinc
- Colour
- Yellow
Technical Specifications
Frequently Asked Questions
What materials is this screw suitable for?
It's designed for timber, chipboard and other wood-based materials, not specifically for masonry or metal fixings.
Will the head sit flush once fitted?
Yes, it has a countersunk head so it sits flush with the surface once driven in.
What drive type does it use?
A Pozi drive recess, which is designed to improve grip and reduce the driver bit slipping out during installation.
Does it resist corrosion?
It has a yellow zinc plated finish, which provides corrosion resistance for interior building and general installation work.
