Анкерный болт Qinwen с круглой головкой 4*21

The Qinwen special expansion bolt is specifically designed for secure fastening in hollow structures, including gypsum boards and drywall. Its unique expansion mechanism ensures a wide grip area, preventing the screw from pulling through fragile materials.

Crafted from high-grade plain carbon steel with a galvanized finish, this fastener offers excellent corrosion resistance and long-term durability. With a strength grade of 4.8, it provides the necessary reliability for various structural requirements.

This product is widely utilized across the construction industry, solar energy installations, and window and door fitting. It is an ideal choice for those seeking a professional-grade solution for hollow-wall mounting applications.