Easy to use and install: The product is designed for convenient use and installation. This is a manufacturer's product, not a Part Number branded part, but the quality meets Part Number manufacturing standards, ensuring high quality and reliable durability. High-quality materials: Our tool parts are made of high-quality materials to ensure durability. No matter what challenges you face, these accessories can stand the test. Product Name: Circular Saw Blade Hex Bolt Part Number: 266133-3 Fitment: for 4101RH, 4105KB, BSS610 Circular Saw Blade Hex Bolt Application: Circular Saw Blade Clamp Note: Installation guide not included; professional installation is strongly recommended. Please verify the item thoroughly to ensure it meets your requirements. Tips: Product may vary slightly between batches due to updates; slight differences in appearance or color may occur, which do not affect functionality. When purchasing, please verify: 1. Vehicle part number 2. Shape, appearance, and size 3. Compatibility chart. Color: Black Material: Steel Package Contents: 4 x Circular Saw Blade Hex Bolt Package includes only the items listed above; other products are not included. Note: Lighting and display differences may cause the color in images to vary slightly from the actual product. Measurement error allowance: +/- 1-3 cm.