
SS304 SS316 Stainless Steel Countersunk Square Groove Head Self Drilling Screw. Customizable Head and Groove: Head style and groove type are fully customizable to meet specific requirements. Wide Material Selection: Available in SS201, SS304, SS316 stainless steel and other high-strength grades. Strict Quality Control: 100% inspection before shipment with tolerance of +/-0.01mm to +/-0.005mm. Professional OEM Service: OEM support based on drawings or samples with NDA protection for confidentiality. Advanced Testing Equipment: Equipped with CMM, hardness testers, and projectors for precise quality assurance. Flexible Shipment Options: Express/air for small orders, sea freight for large orders, customizable per request. Low Minimum Order Quantity: Minimum Order Quantity is just 1 PCS, suitable for prototyping and small batches. Comprehensive Surface Treatment: Options include anodizing, zinc plating, powder coating, PVD, and passivation.