Chinese Factory Price OEM ODM Steel Fastener Hardware High Tensile Grade 8.8 10.9 12.9 Carbon Steel Stainless Steel DIN931 DIN933 Hex Head Nuts & Bolts

Chinese Factory Price OEM ODM Steel Fastener Hardware High Tensile Grade 8.8 10.9 12.9 Carbon Steel Stainless Steel DIN931 DIN933 Hex Head Nuts & Bolts. OEM/ODM Customization: Professional manufacturer offering OEM and ODM services with competitive pricing. Wide Grade Range: Available in Carbon Steel grades 4.8, 6.8, 8.8, 10.9, and 12.9. Multiple Surface Treatments: Options include Zinc, Black Oxide, Galvanized, Dacroment, and Nickel plating. Strict Quality Control: Professional QC team inspects every item from production to packaging. Free Samples Available: Free standard fastener samples provided for testing and quality verification. ISO Certified Factory: ISO9001:2015, ISO45000:2018, and ISO14001 certified production base. Fast Delivery: Lead time of 30-35 days after deposit; off-season within 15 workdays. Comprehensive Testing: In-house lab for chemical analysis, mechanical testing, and corrosion resistance.