Fits Part:532193003 ,193003 Replaces the following Models: 532174365, 539107522 Blade Bolts. Blade bolts with cupped washers ,The cupped washer is designed for proper tightening of thicker blades. Cupped flat washers will never loosen. The blade can be tightened and loosened up even when twisted. That's why cupped styles are so popular.Counter rotating blades have a tendency to come loose and blades wobble and bugger up the ends of the spindles. These have the recess to clear the and keep a positive tension on the bolts, keeping your blades nice and snug . Our product can securely attach the blade to your zero-turn or riding mower. Installation is quick and easy- insert the bolt on and then secure the bolt with the included washer. This bolt and washer package is manufactured with to help you restore the best cutting performance on the green field. This product replaces part # 532193003. Colour:Black Material:Metal Package Contents: 3 x Blade Bolt With Cupped Washer Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.