TIMCO Window Fabrication Screws Countersunk Yellow Zinc (Box of 1000)

Fast-Track Your Fabrication

When your PVCu window profiles contain internal steel or aluminium reinforcements for added rigidity, attaching hinges, locks, and keeps can severely slow down your assembly line if you have to pre-drill every hole. The TIMCO self-drilling fabrication screw completely bypasses this step. Equipped with an aggressive, hardened self-drilling point, it features a Maximum Drilling Thickness (MDT) of 2.5mm. This allows you to drive the screw straight through the plastic outer layer and directly into the metal core in one fluid motion, saving valuable seconds on every single fixing.

A Clean, Countersunk Finish

Hardware clearances on modern windows are incredibly tight. If a screw head sits too high, it can scrape against the opposing frame, preventing the window from closing correctly or damaging the PVCu. These screws utilize a traditional countersunk head designed to drop perfectly into the pre-machined holes of standard window hardware. Once fully driven, the head sits entirely flush with the surface of the metal bracket, ensuring your locking mechanisms and friction stays glide past each other without interference.

Yellow Zinc Protection and Aesthetics

Manufactured from high-strength carbon steel, these screws are built for the rigorous demands of impact drivers and automated fabrication machinery. To protect the steel core, they are treated with a Yellow Zinc finish. This coating achieves a Corrosion Rating of 2, providing the exact level of protection required for the sheltered, occasionally damp environments found inside window rebates. Furthermore, the yellow passivation is an excellent aesthetic match for fabricators working with brass-coloured or similarly passivated window hardware, maintaining a consistent, professional look across the finished product.