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This part is the replacement washer head screw for your lawn tractor. It is black in color and is approximately an inch and a half in length. This self-threading screw is most commonly used for securing the mandrel housing to the mower deck of your lawn tractor. The main reason you would need to replace this part is if the old screw is damaged or missing. This part is sold individually and is a genuine OEM part sourced directly from the manufacturer.

This is an authentic Husqvarna replacement part. Lock nuts are commonly used in lawn and garden equipment because when they are properly installed they will resist loosening. Lawn and garden equipment often produces a high level of vibration during operation, therefore a lock nut would be valuable in ensuring components and connections remain intact and in place throughout operation. We recommend you refer to model specific diagrams for appropriate uses and applications. This lock nut is made of metal, and it measures approximately 5/16-18. To install this replacement part you simply use a wrench to thread this nut onto a bolt. This luck nut is sold individually.

This is a carriage bolt for your lawn equipment, most commonly your mower and tractor. It has a smooth rounded head that has a small square section underneath. It has a diameter of 5/16 inches, 18 threads, and is 5/8 inches long.