• Scam Alert. Members are reminded to NOT send money to buy anything. Don't buy things remote and have it shipped - go get it yourself, pay in person, and take your equipment with you. Scammers have burned people on this forum. Urgency, secrecy, excuses, selling for friend, newish members, FUD, are RED FLAGS. A video conference call is not adequate assurance. Face to face interactions are required. Please report suspicions to the forum admins. Stay Safe - anyone can get scammed.
  • The 2026 Calgary Area Meetup is set for Saturday May 30th at 10am. The signup thread is here! Robinhood has graciously offered to host the meetup again this year. Please note that you MUST RSVP to the notice linked above if you wish to come.

Worm gears on a manure spreader

I'm surprised that regular bolts work. They usually deform and often bugger up the system. Grade 5 bolts shear nice and clean and work much better. You might need 5/16 though because grade 5 is stronger than regular grade.
Depends on the Class of the bolt. We used to tow Aircraft in and out of the Hangars using a #10 size grade 5 (IIC) bolt as the shear pin in the system. Didn't keep any souvenirs, but am willing to swear to that it was a fairly basic, 3/16" bolt of no particular significance! We all carried a couple spares in our pockets!
 
Back
Top