
Factory Inventory Stainless Steel 304 A2 DIN6921 with Unf Bsf Thread 1/4"-28 Unf X 1" Concave Hex Head Flange Bolt New Design. 30+ Years Customization Experience: Extensive expertise in OEM, ODM, and personalized product solutions. Full Customization Support: Customizable size, grade, surface, head, driver, logo, and packaging. ISO9001 and TUV Certified: Products meet international quality standards with third-party testing. Advanced Coating Technology: Mastering Greencate Coating and Powder Zinc Infiltration processes. Wide Material Selection: Available in Carbon Steel, Alloy Steel, Stainless Steel, Brass, and more. Flexible Order Quantity: Minimum Order Quantity starts from 1 piece, accepting small orders. Comprehensive Quality Control: Strict inspections at all production stages with professional testing equipment. Global Shipping Capability: Support for various logistics modes and assistance with forwarders.