M4.2 Self-Drilling Screws in Zinc-Plated Iron, Self-Tapping Screws with Head

【Self-Drilling Design】 These M4.2 self-drilling screws feature a sharp drill shank that drills through taps and locks in one step. No auxiliary processing is required for faster installation on thin sheet metal applications.
Flat Head Fastening: Flat head self-tapping screws help create a neat finish while providing holding strength. Suitable for fastening color steel tiles in steel structures and for light construction work.
Material and Size: Made of zinc-plated iron with an M4.2 x 50 mm specification. The package includes 50 pieces. The complete set is designed to meet common fastening needs when installing sheet metal.
Wide Application: Designed for fastening color steel tiles, steel structures, and thin sheet metal construction. Also suitable for light metal, wood, and plastic materials in general assembly projects.
Efficient Use: Compared to ordinary screws, these fasteners... The pointed shank reduces extra steps and tool changes. A practical choice for construction contractors and DIYers who handle repetitive fastening jobs.