Here are a few seemingly trivial details relating to blade fasteners, but I thought I'd post them up as they may help some people either now or in the future. It is amazing how difficult it can be to figure out suitable parts when you are working blind and having to "backwards engineer" everything. I guess this is why they say "the Devil is in the detail"!

KXD-2 blade fasteners.

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A 3/8" UNC x 1-1/2" black high tensile Grade 8 hex bolt (preferably shanked).
B Original blade with 10mm (or 3/8") diameter hole.
C Original bushing.
D High tensile 3/8" Grade 8 zinc or black oxide washer.
E 3/8" UNC Nyloc heavy duty (high profile) nut. These are easily obtainable from most mower shops.