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Professional Flat Head Star Drive Screws with Bonus 50mm Bit Upgrade your construction and repair projects with our premium Star Drive (6-Lobe) Sheet Metal Screws. Engineered for a flush, professional finish, these screws feature a Flat Head design and High-Grade 304 Stainless Steel construction. To ensure immediate installation, we include a Free Matching 50mm (2-Inch) Long Driver Bit in every pack. What's Inside? - 304 Stainless Steel Flat Head Screws (Size & Qty as per Title) - 1 x 50mm (2-Inch) Long Star Drive Bit Why Choose Our Screws? 1. Flush Finish: The 90-degree countersunk head sits flush with the surface, preventing snagging and providing a clean look. 2. Rust Proof: Solid 18-8 (304) Stainless Steel offers superior corrosion resistance compared to carbon steel, perfect for outdoor and marine use. 3. No Stripping: The Star Drive interface allows for high torque transmission without cam-out, protecting the screw head. ⚠️ CRITICAL USER INSTRUCTIONS: 1. Measurement: Flat Head screws are measured from the TOP of the head to the tip of the point (Total Length). 2. Pre-Drilling is Essential: These are Self-Tapping Screws (Type A), which means they create their own threads but DO NOT drill their own holes. For optimal results, especially with larger sizes (#10, #12, #14) or in metal/hardwood, you MUST drill a pilot hole first #4 VALUE PACK + TOOL: Includes 100 pcs of #4 x 1 flat head screws and 1 Free 50mm (2 ) Star Drive Bit. The long bit reaches deep into small electronics or hinge countersinks effortlessly RUST-PROOF 304 SS: Made of solid 18-8 (304) Stainless Steel. Ideal for humid environments where regular screws rust. Perfect for 3D printed outdoor projects or bathroom hardware CRITICAL SIZING & FIT: Size: #4; Length: 1 (measured from TOP of head to tip). The 90-degree Flat Head creates a flush, smooth surface. Perfect for countersunk holes in thin hinges NO-STRIP STAR DRIVE: The 6-Lobe Star Drive prevents cam-out (stripping), ensuring you can tighten these small screws fully without damaging the screw head or your project PRECISION FASTENING: Designed for small cabinet hinges, electronics cases, and 3D printed parts. Note: Pre-drilling a small pilot hole is recommended for hardwoods to prevent splitting Brand RoyceMart Color Silver Model MB-CK0105-100 Head Type Countersunk Size Name #4 x 1 Unit Count 100.0 Count Item Weight 114 Grams Part Number MB-CK0105-100 Thread Size #4 Drive System Torx Grade Rating Grade A Manufacturer RoyceMart Thread Style Right Hand Fastener Size #4 x 1 Fastener Type Tamper Resistant Material Type Stainless Steel Exterior Finish Stainless Steel Thread Coverage Fully Threaded Screw Head Style Flat Screw Point Style Self-Tapping