Features: The 137644 Locking Nut Bolt ensures secure fastening with its anti loosening design, crafted from metal for enhanced corrosions resistance, ideal for power tool parts requiring stable connection. Featuring a wide compatibility design, this metal bolt seamlessly integrates with various brands and models of electric garden tools, reducing time spent on part replacements and maintenance. Perfect for both busy gardening enthusiasts and professional repair technicians seeking efficient,easy installation solution for outdoor equipment maintenance. Designed to withstand harsh environments like damp gardens or rainy regions, these locking nut bolts maintain structural integrity during prolonged outdoor power tool operations. The integrated safety locking mechanism prevents accidental disengagement, offering peace of mind for users and gardening beginners during equipment assembly and usage. Specifications: Component:Metal Replace Part Numbers:137644, 184218 193406, 532137644, 532184218 532193406, 738-3056, 938-3056，73930600，712-04065, 912-0431 Package Includes: 2Set Wheel Shoulder Bolt note: Please allow 1mm errors due to manual measurement. Due to the differences between different monitors, the picture may not reflect the actual color of the item.