Product Description
TIMCO Classic wood screws, 3.5 x 40mm, countersunk with a Pozi drive and zinc plated finish, sold as a pack for wood, plastic wall plugs, and general fixing work.
Where these fit on a CCTV job
The countersunk head sits flush with the surface, so a camera bracket or junction box gets a clean finish rather than a proud screw head catching on cable runs. This size works for mounting brackets, back boxes, and cable clips into wood or plastic wall plugs.
Drive and finish
Pozi drive (a cross-recess head, marked with extra lines beyond a standard Phillips) gives better torque transfer and reduces cam-out — the screwdriver slipping out of the head — so a power driver is less likely to strip it. The zinc plated coating adds corrosion resistance, which suits indoor installations and protected environments.
What to check before buying
- Confirm your fixing material: wood, or plastic wall plugs for masonry
- Match the drive to a Pozi bit, not a plain Phillips, for the best grip
- For exposed outdoor runs, check whether the mounting location is genuinely protected — this listing covers indoor and protected-environment use
These are a practical, unglamorous fixing for structured cabling and CCTV installs where a secure, flush-sitting screw matters more than anything else.
Specifications
- Brand
- TIMCO
- Dimensions
- 3.5 × 40 mm
- Material
- Zinc
Technical Specifications
Frequently Asked Questions
What size are these screws?
3.5mm x 40mm, countersunk head with a Pozi drive recess.
Can I use these outdoors?
The zinc plated finish gives corrosion resistance suited to indoor installations and protected environments; check your specific outdoor conditions before relying on them there.
What screwdriver do I need?
A Pozi driver or Pozi bit for a power tool — a standard Phillips bit is more likely to slip and strip the head.
What can I fix with these?
Wood, plastic wall plugs, and general fixing accessories such as CCTV brackets, junction boxes, and cable clips.
