Will pick one up tomorrowhave you tried a metric socket?
17MM is closest to 11/16,
Yeah this bolt isn't the same as the other 2. Almost had the mower ready to go. The grass is starting to drive me nuts.Some of the aftermarket spindles are metric
have you tried a metric socket?
17MM is closest to 11/16, doesn't really make sense that 2 blades would use a SAE bolt and 1 Metric. but who knows.
did you pick this up NEW or pre owned?
Spindle screws are supposed to be 7/16-20 X 1.38 Grade 8; although, some of 5000 used a 1/2-20 x 2.25 Grade 5 so the hex head normally uses a 5/8" (16mm) wrench or socket for the 7/16 screw but 3/4" wrench or socket for the 1/2" screw. Someone might have stuck a metric bolt in there. Head markings would indicate if this the case.Will pick one up tomorrow
| 17 mm | 1.7 cm | Just short of 11/16 Inch | 0.66929 Inches |
| 18 mm | 1.8 cm | Just short of 3/4 Inch | 0.70866 Inches |
| 19 mm | 1.9 cm | Little under 3/4 Inch | 0.74803 Inches |