Replacement bar nuts for Husqvarna chain saws, except 316E. Maintain chainsaw performance with original manufacturer replacement guide bar nuts. Includes (4) bar nuts compatible with standard 13mm scrench. For proper retention, features a flange side. Fits most Husqvarna chainsaws. Made in the USA. Length (Inches): 0.314. Chainsaw Part Type: Chain saw bar nuts. Package Contents: 4 Bar nuts. Use: Replacement bar nuts. CA Residents: Prop 65 Warning(s): Yes. Safety Listing: Not safety listed. UNSPSC: 27112700.