
Cross Groove Recess Hexagon Bolt Screw. Wide Material Options: Available in Stainless Steel, Carbon Steel, and Copper. Multiple Grade Standards: Offers Grades 4.8, 8.8, 10.9, and 12.9 to meet various strength requirements. Extensive Surface Finishes: Includes Natural, Black, Zinc-plated, Nickel, Dacromet, and Hot-dip Galvanized options. Flexible Delivery Times: Normal delivery 20-25 days; Urgent delivery 7-15 days; Spot goods same-day warehouse delivery. OEM and ODM Services: Customization available from both samples and designs with 2 R&D engineers. Multiple International Standards: Complies with DIN, GB, ANSI, BSW, JIS, GOST, and UNS standards. Convenient Export Logistics: Located 35km from Ningbo Port with 4 production lines for efficient shipping. Rigorous Quality Control: Features random visual and function inspections with traceable raw materials.