The Lynxmotion Aluminum Hex Standoffs (F/F) - 25mm x 5mm M3 Tapped (10pk) offer a pack of 10 hex standoffs. They are available in Imperial (4-40) and metric (M3) threads and in various lengths. The weight has been reduced compared to standard hexagon spacer bolts, but they are still very sturdy with their aluminum construction and matt black anodizing.