Suitable for adjusting screws and accessories of the Husqvarna chainsaws 435, 440, 450 and 445.

Original factory specifications, specifically developed for Husqvarna 435, 440, 450, and 445 series chainsaws. Carburetor Adjustment Screw Kit: This product contains a high-precision brass or steel adjustment screw and a matching spring. It is used to replace the original carburetor screw if it is defective (broken, corroded, worn, or lost). By restoring the precise air-fuel mixture at idle (T/LA), low (L), and high (H) RPMs, it effectively corrects performance problems such as starting difficulties, rough idling, poor acceleration, and a lean or rich mixture at high RPMs. This kit is an essential component for carburetor maintenance, adjustment, and repair.