
DIN931 Grade4.8 Carbon Steel Zinc Plated CE Certified M5m36 Hex Head Bolt. Factory Direct Supply: Genuine fastener factory in Yongnian with no middleman markup or hidden fees. Flexible MOQ Options: MOQ 1 piece for in-stock items; 2 tons for custom production to reduce trial risk. Fast Delivery Capacity: 7-15 days for custom orders; ample stock for standard items with split shipment support. Custom Surface Treatment: Options include zinc plated, HDG, black oxide, and Dacromet with customizable salt spray hours. Free Sample Provision: Free samples provided for customers who confirm orders, with freight borne by the customer. Comprehensive Compliance: Supports Cr6+/Cr3+ and RoHS compliance, meeting international environmental standards. Reliable After-Sales Service: Response within 2 business days, 30-day follow-up, and bilingual technical support.