YOOPIN 280PCS Self Tapping Screws Kit, Stainless Steel Self Drilling Screws, M4.2 Assorted Phillips Head Drilling Screws Set (32mm/25mm/19mm/16mm/13mm) for Wood, Metal Sheets, Roofing Windows

280PCS Self Tapping Screws: Set includes 280 self drilling screws in a variety of sizes to meet your different needs, M4.2×13 (70 pcs), M4.2×16 (70 pcs), M4.2×19 (50 pcs), M4.2×25 (50 pcs), M4.2×32 (40 pcs)

Sophisticated Design: Self drilling screws come with a drill point, which allows drilling, tapping, and locking to be completed simultaneously, clamping force of both the screw and the contact surface. The cross recessed head structure ensures stable performance and high strength across materials

High Quality: Self tapping screws are made of 410 stainless steel, strong and durable, with good corrosion resistance and stability. They can effectively prevent rust and thread wear in wet and corrosive environments, significantly improving product life and reliability

Easy storage and Organized Classification: Self drilling screws are neatly arranged by size in the storage box. The self-adhesive clearly labels the screw specifications corresponding to each compartment, making it easy for quick access and identification and improving work efficiency

Wide Applications: Self drilling screws require no pre drilling and can penetrate metal surfaces directly for fast installation. They are widely used in furniture assembly, steel structure connections, metal plate fixing, and other scenarios, covering most application requirements