Kisankraft Pack of 10 Grease Bolt M8*12 Big is a genuine replacement set for 2-stroke brush cutters, compatible with KK-BC-555, 7640, and 8640 models. These high-quality M8 x 12 mm bolts are used for securing grease points and components, ensuring proper lubrication and smooth operation. Ideal for regular maintenance and repairs, they help maintain the durability and performance of your brush cutter in demanding field conditions.