Product Description
TIMCO 3.5 x 40mm Pozi Countersunk Wood Screws (SKU TIMCO-CLASSIC-SCREW-3.5X40MM) are a fixed 3.5mm x 40mm size, sold as a pack, for general fastening into wood or plastic wall plugs.
Head and drive
The countersunk head seats flush with the mounting surface, useful where a proud screw head would snag cable runs around a CCTV bracket or junction box. The Pozi recess gives better torque transfer and reduced cam-out than a plain cross-head, so a power driver is less likely to slip out of the screw during a first-fix run.
Finish
Zinc plating gives corrosion resistance, making this pack suited to indoor installations and protected environments rather than exposed outdoor fixings.
On the job
Installers use this size for camera brackets, junction boxes, cable clips, and general electrical accessory fixing into timber or plastic wall plugs — common groundwork on CCTV and structured cabling installs.
Key specs
- Size: 3.5mm x 40mm
- Head: countersunk
- Drive: Pozi
- Finish: zinc plated
- Fixing into: wood, plastic wall plugs
- Brand/MPN: TIMCO / TIMCO-CLASSIC-SCREW-3.5X40MM
Check the fixing material and required screw length against the bracket or back box before ordering, since this listing is a single fixed size.
Specifications
- Brand
- TIMCO
- Dimensions
- 3.5 × 40 mm
- Material
- Zinc
Technical Specifications
Frequently Asked Questions
What size are these screws?
3.5mm x 40mm, with a countersunk head and Pozi drive recess.
What materials can they fix into?
They are suited to wood and plastic wall plugs, per the listed use.
What finish do they have?
A zinc plated coating, giving corrosion resistance suited to indoor or protected environments.
Are these suitable for outdoor CCTV brackets?
The listing describes the zinc finish as suited to indoor installations and protected environments, not outdoor exposure.










