Securfix Self Drilling Roofing Screws Size: 12 x 2 3/4" (5.5 x 70mm) | Pack of 50 Screws Option:Size: 12 x 1 1/2" (55 x 38mm) | Pack of 100 Screws pre-tensioned elastic|Smoother ironing surface -

pre-tensioned elastic|Smoother ironing surface - thick felt backing|Long lasting - durable and machine washable|Made in the UK

providing adhesion promotion on to most substrates and as well as providing a suitable base before applying acrylic water-based or alkyd based enamels

Heat set after winding to stabilize|Not affected by mortar

Steel fixing for light weights|Simple installation due to introductory thread|Corrugated tip simplifies installation without drilling|Expanding construction of the fixing prevents from its spin in the substrate during installation|Flat head enables leveling fixing with the surface of the substrate|Simple uninstallation without harming the substrate

Securfix Self Drilling Roofing Screws Size: 12 x 2 3/4" (5.5 x 70mm) | Pack of 50 Screws Option:Size: 12 x 1 1/2" (55 x 38mm) | Pack of 100 Screws pre-tensioned elastic|Smoother ironing surface -Includes expanding rubber washer for permanent weather seal Head: Hex Finish: Zinc Plated