Easy to use and install: The product is designed for convenient installation and operation. This is a manufacturer's product, not an OEM Part Number part, but the quality meets OEM manufacturing requirements, providing 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 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 needs. Tips: The product may be updated periodically due to different batches. The actual product may have slight differences or color variations, 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: Light reflection and different displays may cause the color in the image to vary slightly from the actual product. Measurement error allowed is +/- 1-3 cm.