Features Versatile Compatibility for Various Models - Ideal for aircraft, multi-rotors, UAVs, and helicopters, ensuring you have the right components for your build Enhanced Durability with Anodized Finish - The anodized processing provides superior corrosion resistance and longevity, guaranteeing stable performance over time Premium Aluminum Alloy Construction - Crafted from high-quality aluminum alloy, these standoffs offer excellent strength and durability for demanding applications Precision-Engineered Knurled Design - The knurled body with internal threads delivers superior grip and resistance, ensuring a secure fit in your projects Complete Set of 10 Pcs Included - Each package contains 10 M3x40 standoffs, meeting your quantity needs for multiple builds or repairs Features: 1、Wide application, suitable for aircraft, multi-rotor, UAV, helicopter, etc. 2、Anodized processing for better and resistance, long service life and stable performance. 3、Made of premium aluminum alloy material of and good durability. 4、The entire body of the separator is covered with knurl, internal thread, greater resistance and precision. 5、Each set including 10 pcs M3x40 standoff to satisfy the quantity needs. Specification: Conditon: 100% Item Type: Aluminum Column Standoff Product Model: M3 x 40 Material: Aluminum Alloy Color: Black Process: CNC Anodizing Length: Approx. 40mm/1.6in Internal Thread: Approx. m/0.12in Outer Diameter: Approx. 5mm/0.20in Tapping on Both Ends: Approx. 8mm/0.31in Application: Suitable for FPV, Quadcopter rack, UAV, etc Package List: 10 x Aluminum Column Package List 10 x Aluminum Column