Techfast Window Screws 3.9 x 28mm Self Drilling Ribbed Box of 1000

Upgrade your window installation with Techfast Window Screws 3.9 x 28mm. These self-drilling screws feature a ribbed design for maximum grip and stability. Each box contains an impressive 1000 screws, ensuring you have an ample supply for your projects. Say goodbye to tedious drilling and hello to efficiency with these high-quality screws. Get your hands on the Techfast Window Screws today!