Comes as a set of 1 nut and 1 bolt. 

 Multiple sets can be ordered to save on shipping. 

 Fits some Troybuilt and other snowblower models. 

Please verify this will for your model before purchasing. 

 Set includes: - 5/16"-18 x 3/4" Carriage Bolts - ASTM A307, Coarse Thread, Zinc - 5/16"-18 Serrated Flange Lock Nut - ASME B18.16.4, Coarse Thread, Zinc Sold as 1 bolt and 1 nut sets. 

 Need 4 for the skids, scraper bar varies by model.