
Blue White Zinc Welding Screw M8X40. Diverse Material Options: Available in carbon steel, alloy steel, stainless steel, brass, and bronze. Multiple Surface Finishes: Offers galvanized, dacromet, zinc plated, nickel alloy plated, and polishing options. Comprehensive Heat Treatment: Provides carburization, tempering, and high-frequency quenching services. Flexible Customization: Supports customization from samples, designs, full customization, and minor adjustments. Wide Standard Compliance: Meets DIN, ANSI, ASTM, JIS, GB, ISO, IFI, and non-standard requirements. Advanced Manufacturing Equipment: Equipped with optical sorting, cold heading, thread rolling, and CNC lathes. Strict Quality Control: Features 100% visual inspection with 8 dedicated QA/QC inspectors. ISO Certified Quality: Certified under ISO 9001, ISO/TS 16949, ISO14001, and ISO45001:2018.