M3 M4 M5 Black Steel Hexagon Socket Allen Bolt Screw Hex Countersunk Flat Head Screw

M3 M4 M5 Black Steel Hexagon Socket Allen Bolt Screw Hex Countersunk Flat Head Screw. Diverse Material Options: Available in Stainless Steel, Carbon Steel, Brass, Bronze, Iron, Aluminum, Alloy Steel, and Titanium. Custom Thread Length: Thread length can be customized to meet specific customer requirements. Multiple Surface Treatments: Options include Plain, Zinc Plated, Black Oxide, H.D.G, and DAC as per custom needs. Wide Size Range: Standard sizes from M3 to M20, or fully made to print based on customer specifications. High Grade Strength: Available in grades 4.8, 6.8, 8.8, and 12.9 for various strength requirements. ISO9001 Certification: Certified under ISO9001:2008, CQM, and IQNet quality management systems. OEM and ODM Services: Full customization available from samples, designs, or minor adjustments. Fast Delivery: Peak and off-peak season lead time is within 15 working days.