
Timco self‑drilling cill screw, 4.2 mm × 42 mm, bright zinc plated carbon steel, pack of 500 for door and window frame installations.
Overview
The Timco Cill Screw is a robust, purpose‑driven fastener designed for securely attaching cills to the bases of door or window frames. Its self‑drilling point penetrates both reinforced and unreinforced frame materials without the need for pre‑drilling, speeding up installation and reducing tool requirements. The bright zinc plated (BZP) finish provides good corrosion resistance for exposed locations, while the carbon steel construction delivers high strength and shear resistance for a permanent hold.
Key Features
Specifications
The screw measures 4.2 mm in diameter and 42 mm in overall length and is supplied in a convenient pack of 500 pieces, offering excellent value for multiple jobs or larger projects.
Always follow local regulations and product guidance.
Free standard delivery on UK mainland orders. Express delivery options and international shipping available at checkout.
We offer a 30-day money-back guarantee on most products. For faulty items, contact us within 14 days for a replacement or refund.
View Full Delivery & Returns PolicyWe take the utmost care with your payment and personal details. Our website employs advanced encryption technology, including Secure Sockets Layer (SSL), to protect your information during transmission. You can verify a secure connection by looking for 'https' and a locked padlock in your browser.
Cookies enhance your shopping experience by keeping track of your basket and remembering you when you return. We also use banner advertising based on your browsing history to present products of potential interest.
Beware of phishing scams! We will never ask for personal details via email. If such information is required, we'll request you to contact us by phone. If you receive an email requesting sensitive information, do not respond and let us know immediately.