Description This high-quality Chain Adjusting Screw (SKU: ST0343) is a direct replacement for STIHL models 050, 051, 070, and 090, offering a precise fit and reliable performance. Manufactured to meet OEM specifications (STIHL 1128 020 1227), this durable component ensures your chainsaw's chain tension stays accurate for safe and efficient cutting. With a 50mm bore measurement, it's built to withstand tough Australian conditions and provide long-lasting service. Features Precision-engineered to match STIHL OEM specifications for a perfect fit and reliable operation. Constructed from durable materials to resist wear and tear in demanding outdoor environments. Simple to install, making it an ideal replacement part for maintaining your chainsaw's chain tension system. Specifications SKU ST0343 OEM STIHL 1128 020 1227 GA Spares CYL7459 Measurements 50mm Bore. Fits STIHL 050 STIHL 051 STIHL 070 / 090 Product Line Chainsaw Parts & Accessories – High-quality replacement components for maintaining and repairing your chainsaw's tensioning system.