... serrated hex flange nut 2.quality is stable for mass production 3.Cr3 zinc is available 4. ... rod bolt,sleeve. .Shell type:many hole types for your choose .Coating: Cr6 zinc/Cr3 zinc,3- ... wedging in outward and locking the anchor into the base materialFor further information,pls feel free to contact ... ,please send us the drawings and specifications for our quoatations. sleeve anchor with hex flange nut