
High-Quality White Zinc Hex Head Flange Bolts for Reliable Fastening. Wide Grade Range: Available in grades 3.6, 4.8, 5.6, 6.8, 8.8, 9.8, 10.9, and 12.9. Versatile Surface Treatments: Options include Hot Galvanized, Black, Color-Zinc, Blue White Zinc, Dacromet, and more. Anti-Loosening Design: Circular serrated flange acts as a gasket to distribute load and prevent loosening. International Standards Compliance: Manufactured to DIN, GB, ANSI, BSW, JIS, and GOST standards. Diverse Material Options: Includes Carbon Steel, 304/316 Stainless Steel, Brass, Aluminum, Titanium, and niche alloys. Customization Capability: Tailored solutions for unique head shapes, thread types, lengths, and materials. Comprehensive Quality Control: 100% QC checks for dimensional accuracy, torque resistance, and corrosion resistance. Flexible Delivery Options: Standard delivery 15-25 days; urgent orders available with expedited production.