Easy to use and install: The product design is convenient for users to use and install. This is a manufacturer's product, not an OEM Part Number accessory, but the quality meets Part Number manufacturing requirements, providing high quality and reliable durability. High-quality materials: Our tool parts are made of high-quality materials to ensure durability and long life. 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 compatibility before purchase. Tips: Product may vary slightly between batches, including minor differences in appearance or color, which do not affect functionality. Please verify the following when purchasing: 1. Vehicle part number 2. Appearance, shape, and size 3. Compatibility table 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 slight variations in color between the image and actual item. Measurement error is +/- 1-3 cm.