Famous Countersunk Self-Tapping Screws Suppliers & Companies
Aozhan countersunk self-tapping screws are manufactured from high-quality carbon steel with zinc-plated or phosphated surfaces for superior rust resistance. The 90° countersunk head sits completely flush with material surfaces, eliminating protrusions - ideal for sheet metal connections requiring smooth finishes. The specially designed tapping threads cut matching threads directly into metal, plastic and other materials without pre-drilling, significantly improving installation efficiency. Compliant with GB/T 845 standards, these screws are widely used in electronics enclosures, appliance assembly and decorative engineering projects.
