DESCRIPTIONThese Cast Corner Brackets are used to connect two V-Slot Linear Rails together for a 90 degree connection."Mount this corner to V-Slot Linear Rail using M5x8mm Low Profile Screws and M5 Tee Nuts."Product DetailsDimensions: 20mm x 20mm x 17mm4mm Wide T-Slot TabCompatible with 20mm V-Slot ..