
8.8 Zinc Plated Black Oxide Hex Head Flange Bolt Torx M5 Wide Head Screw Tornillo Cabeza Alen Bolt. OEM/ODM Service: Professional manufacturer accepting customized orders with competitive pricing. Free Sample Available: Free samples provided for standard fasteners to test quality before bulk order. Strict Quality Control: Professional QC team inspects every item from production to packaging. ISO9001 Certified: Manufacturing process certified under ISO9001:2015 and ISO45001:2018 standards. Wide Material Range: Available in Alloy Steel and Stainless Steel with grades 4.8 to 12.9. Comprehensive Testing: In-house lab performs chemical analysis, corrosion testing, and mechanical property tests. Global Shipping: Dedicated shipping department ensures fast delivery and secure packaging worldwide. Custom Lead Time: Customized fasteners require 30-60 days production lead time.