Easy to use and install: The product is designed for convenient use and installation. This is a manufacturer's product, not an OEM 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 Circular Saw Blade Hex Bolt Application scenario: Circular Saw Blade Clamp Note: Installation guide not included; professional installation is strongly recommended. Please check as much as possible to make sure the item is what you need. Tips: The product may be updated due to different batches. The actual product may have slight differences or color variations, which do not affect use. Please verify three aspects of information 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 Only the above package content is included; other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture to be slightly different from the real thing. Measurement allowed error is +/- 1-3 cm. Due to light and screen setting differences, the item's color may be slightly different from the pictures. Please allow slight dimension differences due to manual measurement.