MTD Screw 5/16-18 x .625" - precision fastener engineered for demanding agricultural and outdoor power equipment applications. This metric-standard screw features a 5/16-inch diameter with 18 threads per inch, delivering reliable holding power in critical assemblies. The .625-inch length provides optimal engagement for medium-duty connections on MTD-branded equipment, including lawn tractors, tillers, and utility machines. Manufactured to exacting specifications for consistent performance and durability in high-vibration environments. Essential replacement component for equipment maintenance and repair work.