Hexagonal Base Self-Clinching Standoffs Stainless Steel Hexagonal Base Self-Clinching Standoffs for Sheet Metal Assembly. Durable Stainless Steel: Made of stainless steel with zinc plating for excellent corrosion resistance. Secure Hexagonal Base: Hexagonal flange base locks securely to prevent rotation or loosening. Vibration Resistant: Provides consistent spacing and stable performance in vibrating environments. Easy Installation: Designed for permanent installation using standard pressing tools. Customizable Dimensions: Available in various thread sizes (M3-M8) and lengths including custom options. Multiple Surface Finishes: Options include passivated, zinc plated, nickel plated, matte, or polished. Certified Quality: Compliant with ISO, GS, RoHS, and CE standards for safety and quality.