Durable Zinc Coated Landscape Equipment Screws M4.5*72 for Outdoor Use

Durable Zinc Coated Landscape Equipment Screws M4.5*72 for Outdoor Use. Anti-Loosening Spline Design: Spline beneath head increases friction to prevent loosening under vibration or impact. Wide Grade Range: Available in grades 3.6 to 12.9 to meet diverse strength requirements. Multiple Surface Treatments: Options include Hot Galvanized, Dacromet, Black Oxide, and Color-Zinc. Customization Support: OEM/ODM services available for unique head shapes, threads, and materials. International Standards: Manufactured to DIN, GB, ANSI, JIS, BSW, and GOST standards. 100% Quality Control: Every batch undergoes 100% QC for dimensional accuracy and torque resistance. Low MOQ for Startups: MOQ starts from 100,000 pieces, with lower options for special cases. 24/7 Technical Support: Engineers available around the clock to resolve issues and provide guidance.