Brass hex standoffs and spacers for PCB and motherboard mounting Available in M2, M2.5, M3, M4, and M5 hex threaded variants. Also referred to as rack bolts or PCB mounting pillars. Material Brass (yellow brass) for durable, corrosion resistant mounting with stable threading. Key features - Burr-free edges and smooth threads for easy, reliable assembly - Consistent thread depth to ensure secure, repeatable mounting - Brass construction provides rigidity and good compatibility with standard fasteners Benefits - Secure and stable spacing between boards and components - Precise alignment reduces risk of cross-threading or loosened connections - Long-lasting performance in varied environments Compatibility and sizes - Fits standard M2 to M5 screws - Suitable for motherboard spacers, PCB mounting pillars, and general electronic enclosures Use scenarios - Installing a motherboard in a compact PC case or custom enclosure - Mounting multiple PCBs in a rack or testing fixture - Building DIY electronics projects that require precise, removable standoffs How to choose - Select size to match your screw type and the required board-to-case clearance - For higher clearance or stack configurations, combine multiple standoffs as needed Why choose ours - Durable brass with reliable threading and clear sizing for consistent performance - Clean, smooth finish supports easy assembly and long-term reliability