Dear Sir/Madam,This is HARDIKTHAKKAR from US.I'm looking for products with the following specifications:Ball Screw With below Dimensions:Shaft/Thread Diameter: 28 mmLead: 6 mmOver All Length: 600 mmStroke Length: 370 mmBoth ends have threads (M20 and M25)Square Flange Nut with 4 mounting holes on 68 mm BCDNut Length: 100 mm Show More