The TIMCO Wafer Head Self Drilling Screw 25 x 4.2mm Box of 1000 is a reliable and robust choice for a wide range of construction and assembly applications. Produced by TIMCO, a trusted name in the industry, these screws feature a self-drilling design that simplifies installation, making them ideal for both professional builders and DIY enthusiasts. The wafer head design provides a flush finish and ensures tight grip, whilst the generous box size ensures you wont run out in the middle of your project.