GUWANJI | Anti-loosening Hand-tightening Screw

Hand-Tightening Feature Designed for easy hand-tightening, making it convenient for on-the-go adjustments without the need for tools. One-Row Groove Design The one-row groove design ensures a secure grip, preventing the screw from loosening or falling out. Versatile Size Range Available in a range of sizes from M2 to M8, catering to various tightening needs. Hardware/Tools Category Part of the Hardware/Tools category, ideal for DIY projects, repairs, and general maintenance. GB839 Standard Complies with GB839 standard, ensuring reliability and consistency in performance.