NeedhamAg Bag of 50 Disc Mounting Nuts and Bolts (For John Deere 50, 60 and 90 Series hubs on 750a Air Seeders))
Matthew Gray
To securely mount our Ingersoll and Forges De Niaux 200 disc blades to the John Deere hubs, we recommend 3/8 x 1” long, grade 8 carriage bolts.
Drills and air-seeders prior to the John Deere ProSeries came with grade 5 carriage bolts, grade 5 flange lock nuts and a washer, but we recommend and sell grade 8 nuts and bolts without the washers. We have used this combination for 10+ years with great success.
Sold in bags of 50 serrated flange lock nuts and 50 carriage bolts.
Important – Torque the nuts to 35 ft-lb with torque wrench.
Not for John Deere ProSeries released in summer 2018 (the ProSeries hubs are tapped, so they use a hex bolt and no lock nut).
