Button head allen bolt and locknut kit. Pkg of 20 bolts and nuts 5/16" x 5/8". Used to mount disc opener blades to hub on Crustbuster All Plant 3400, 4000, 4025, 4030, 4615, 4620, 4740, and 4745. One kit mounts two blades.
| Machine | Make | Model |
|---|---|---|
| Air Seeder/Drill,Rotary Hoe | Allen | 3400,4000,4025,4030,4615,4620,4740,4745 |