Husqvarna 850857 Blade Bolt For Husqvarna/Poulan/Roper/Craftsman/Weed Eater
Husqvarna, Poulan, Poulan Pro, Roper, Sears/Craftsman, and Weed Eater 850857 Blade Bolt.  Current part number 850857 replaces previous part numbers 532850857, 800850857 and 850857X053.