Description
Timco 4.2 x 55 cill screws are specialist window fixing screws designed for secure attachment of cills to window and door frames. These screws combine self-tapping and self-drilling performance to reduce the need for pre-drilled pilot holes, speeding up installation and improving productivity on site.
Timco 4.2 x 55 Cill Screws – Product Details
Featuring a bugle head with a PH (Phillips) drive, these screws ensure reliable bit engagement and smooth countersinking into frame materials. The self-tapping thread provides excellent grip in timber and composite substrates, while the self-drilling point allows drilling through reinforced and unreinforced material without pilot holes.
Manufactured from carbon steel with a zinc-plated finish for general corrosion resistance, these screws are suitable for internal use and sheltered environments. Supplied in a box of 500, they are ideal for professional window installers, fabricators and joiners.
