
Phillips Flat Round Head Black Zinc Coating Self-Tapping/Self-Drilling Screw. Self-Drilling Capability: Drill-shaped point allows drilling into wood, plastic, and metal without pre-drilled pilot holes. Diverse Size Range: Diameter 3.5mm to 5.5mm and Length 10mm to 50mm available to fit various applications. Customization Available: Produce according to customer drawings and specific requirements. Multiple Surface Options: Available in Plain, Yellow, or White Zinc Plated finishes. High-Quality Materials: Constructed from Carbon C1022 Steel, Case Harden, or Stainless Steel. Strict Quality Inspection: 100% inspection performed before shipment to ensure product reliability. Fast Response Time: Quotations provided within 24 hours of receiving detailed inquiries. Free Samples Offered: Free samples available for quality check and market testing (freight paid by client).