Description M3 40mm Knurled Standoff can be used for connecting rod pulling rod or the top column play the role of connecting or extending nut Specification Brand SuleveModel M3AS9Material Aluminum 6061Color Black Dark Blue Dark Orange Gold Green Red Purple Pink Light BlueThread Diameter 3mm M3 Length 40mmFeatures Made of Aluminum 6061 material durable and multi color can be choice Knurled Textured design lightweight strong hardness secure Can be used for connecting rod pulling rod or the top column play the role of connecting or extending nut Is an important part of DIY and It is applied to the FPV model Package included 10 x Knurled Standoffs