JD 160

[tude]

Well after 35 years the bolts (JD calls them cap screws) that attach the blades to the spindles have rounded heads. You would think I could get a couple more years use out of them. My local JD charged $2 for the two replacement cap screws. I was able to use an extractor to loosen the bolts without removing the deck.

 

[Tinhack]

Not a bad price in today's market. In fact, that's down-right cheap. I think the complete name is Socket Head Cap Screws. These have a round head with a female hex hole. An "Alen Wrench" or "Alen Socket" is used to install and remove. It's a good idea to put a daub of grease in the hole to keep the hole from rusting. They used to have caps you could install to keep them clean, but I haven't seen those in years.

 

[beenthere]

Tinhack
Don't think these are socket head cap screws. The part # 19H1740 are 7/16" X 1-3/4" size

Image shown at Amazon, but at the dealer they are cheaper.

https://www.amazon.com/HD-Switch-19H1740-Tractors-Compatible/dp/B073Z6BNQ2