HIFROM(TM 10PCS BAR NUTS FOR Stihl CHAINSAW 017 018 023 025 MS170 MS180 MS230 MS250 NEW AFTERMARKET 1. New high quality aftermaket replacement BAR NUTS 2. Fit for chainsaw models 036 038 039 041 044 046 051 064 065 066 MS170 3. This is non original aftermarket parts, please check the pictures for compatibility before buy it . 4. Package includes: 10 X BAR NUTS 5. HIFROM focus on provide high quality products at fair price, if you unsatisfy with our product, you can return to our USA warehouse, no risk.