Description: 【Precision Design】: The Carburetor Idle Speed Adjusting Screw is meticulously designed for accurate adjustments. Its fine thread allow for precise tuning, ensuring your vehicle maintains the perfect idle speed. 【High-Quality Materials】: Crafted from high-grade, durable metal, this Idle Speed Adjustment Screw is designed to withstand the rigors of regular use. It resists rust and wear, ensuring longevity and reliable performance. 【Easy Installation】: With its user-friendly design, this idle speed adjusting screw can be installed with ease. Whether you're a professional mechanic or a DIY enthusiast, you can quickly set up this component to improve your vehicle's performance. 【Universal Compatibility】: This adjusting screw is designed to fit a wide range of PWK, NSR, and PWL carburetors. It's an ideal replacement part that ensures your vehicle's engine runs smoothly and efficiently. 【Value for Money】: Offering superior performance at a competitive price, this Carburetor Idle Speed Adjusting Screw is a cost-effective solution for maintaining your vehicle's engine. Specification: Material: Metal Size Chart: Length 41mm/1.61inch   Package Includes: 1 Piece  Idle Speed Adjustment Screw(4 Pack) Note: Please allow slightly errors due to manual measurement and different monitors.