20, 7.5 Ø x 100mm Concrete Frame Fixing Screw - Window/Door/Screws with Free TORX 30 BIT with Every Order - Free UK DELIVERY : Amazon.co.uk: DIY & Tools
Screws for Espag Window Handles from HandleStore.com
3.9mm x 16mm Self-Tapping Window Screws (25 Pack) | Truly PVC - Conservatory Window Door Roofline and Building Products