304 Stainless Steel DIN551 Slotted Flat End Set Screw- Headless Machine Thread Grub Screw

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1. Performance & Material Properties
   • Premium 304 Stainless Steel: Machined from AISI 304 (18-8) stainless steel, offering excellent corrosion resistance in salt-spray, humid, and chemical environments.
   • Mechanical Strength: Tensile strength ≈515 MPa, yield strength ≈205 MPa, hardness ~80 HRB—sufficient to maintain firm clamping under static and light dynamic loads.
   • Flat-End Tip Design: Precisely milled flat end distributes pressure evenly across mating surfaces, minimizing damage to shafts or hubs while maintaining consistent holding force.
   • Passivated Finish: Chemically passivated to remove free iron and enhance the natural chromium oxide layer, further improving rust-resistance without adding plating that can crack or peel.
2. Detailed Application Range
   • Shaft & Collar Locking: Secure collars, gears, pulleys, and couplings on motor and gearbox shafts where a flush, damage-minimizing contact is required.
   • Precision Instruments & Electronics: Fasten circuit-board standoffs, optical mounts, and sensor assemblies in instrumentation and control panels.
   • Food, Beverage & Marine Equipment: Withstands repeated wash-down and corrosive environments in food processing lines, marine hardware, and outdoor assemblies.
   • Medical & Laboratory Devices: Non-magnetic and biocompatible for fixtures, clamps, and adjustment points in medical instruments and lab apparatus.
3. Effortless Installation & Adjustment
   • Slotted Drive: Simple flat-blade screwdriver interface accommodates a wide range of tool sizes, allowing rapid installation and field adjustments without specialized wrenches.
   • Headless, Low-Profile Design: Completely recessed in the threaded hole, eliminating protrusions and reducing the risk of snagging or interference with adjacent components.
   • Self-Seating Flat End: Cuts a micro-imprint in mating surfaces to resist loosening under vibration, yet can be easily repositioned or removed with minimal surface damage.
4. Superior Quality & Long-Term Reliability
   • DIN 551 Standard Compliance: Manufactured to DIN 551 tolerances (±0.1 mm on thread diameter, ±0.2 mm on length), ensuring interchangeability across global suppliers.
   • ISO 9001-Certified Production: Each batch undergoes dimensional inspection, drive-slot fit testing, and ≥240 h salt-spray corrosion testing per ASTM B117 for consistent performance.
   • Full Material Traceability & RoHS Compliance: Lot-by-lot documentation from melt to finished part, free of restricted substances and magnetic anomalies—guaranteeing dependable operation in critical applications.