Large Angle M10x20 Hex Bolt M10 Lock Nut M10%20 M10 = M10x3s MI0x20 Hex Bolt LOM M10 Lock Nut Small Angle Long Steel Bars Assemble LARGE and SMALL Connect LONG stew steel angle separately ars with steel angles R Pin Hitch:Pin Wilcox Reinforcement Bars Tongue Main Frame