Easy to use and install: The product is designed for convenient installation and operation. This is a manufacturer's product, not an OEM part, but it meets OEM manufacturing requirements for quality, offering high quality and reliable durability. High-quality materials: Our tool parts are made of premium materials to ensure durability. No matter the challenges, these accessories are built to last. 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 matches your requirements before purchase. Tips: Product may vary slightly between batches, including minor differences in appearance or color, which do not affect functionality. When purchasing, please verify: 1. Part number 2. Shape, size, and appearance 3. Compatibility information Color: Black Material: Steel Package Contents: 4 x Circular Saw Blade Hex Bolt Package includes only the items listed. Other products are not included. Note: Lighting and display settings may cause slight color variations between the image and the actual item. Measurement tolerance: +/- 1-3 cm.